Telescopic touch-press type butt-joint conductive structure and lifting equipment

Abstract

The utility model discloses a telescopic contact pressure type butt joint conductive structure and lifting equipment, comprising a first insulating seat and a second insulating seat, the first insulating seat is provided with a spring and an A conductive column with an N butt joint end and an M power connection end, the spring is sleeved on the A conductive column, the second insulating seat is provided with a B conductive column with an N1 butt joint end and an M1 power connection end, and the B conductive column is sleeved on the M power connection end. And the first insulating seat and the second insulating seat are provided with clamping and embedding parts which can be mounted on the lifting platform or the fixed plate. The contact surfaces of the N butt joint end and the N1 butt joint end are different in area, when the conductive column A and the conductive column B are in an electric conduction state after being in butt joint, the conductive column A is driven by the spring, telescopic pressure is provided for the conductive column A, the contact surfaces of the N butt joint end and the N1 butt joint end of the conductive column are tightly attached, and the solid conductive column can greatly improve the current load. In addition, the elastic force and the contact area of the spring are poor, the fault tolerance rate of butt joint is improved, normal electric conduction can be achieved even under the condition that the lifting body and the lifting table shake, and the defects in the prior art are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting equipment, and more specifically, relates to key components of lifting equipment, specifically to a telescopic contact-pressure docking guide structure and lifting equipment. Background Art

[0002] Currently, the advantage of equipping electrical equipment such as lamps and fans with lifting equipment is that they can be lowered to the ground, making repairs and maintenance easier, saving time and money. Depending on the application requirements and the structure of the lifter, the electrical connection between the electrical equipment on the hanging platform and the lift host can be connected in a variety of ways, including sleeve-type and plug-in types. Among them, cylindrical pressure-contact connections are highly favored by technicians due to their flexible placement and wide connection requirements. In the prior art, most pressure-touch power connection structures adopt a sleeve telescopic structure, that is, a hollow sleeve is telescopic, and a spring is installed in the sleeve. When the hanging plate is docked with the host, the contact and the sleeve are pressed, and the power contact is connected. The contact is a hollow structure, and the conductor is mainly the wall part of the cylinder. Therefore, the built-in spring also becomes a part of the conductive current. When a large power is conducted, the contact and the spring will heat up, and the heat accelerates the aging of the spring. After the spring ages, the elastic force weakens, resulting in insufficient contact pressure, making the contact contact incomplete, forming a vicious circle, and the contact is prone to burn out after long-term use. The utility model fundamentally improves the structure and completely solves this problem. Utility Model Content

[0003] The main purpose of the utility model is to provide a telescopic touch-type docking conductive structure and lifting equipment, which are provided with solid conductive columns A and B, and the conductive column A is driven back and forth by a spring. After the conductive columns A and B are docked, a large current can be passed to the electrical equipment to provide the electrical load of the lifting equipment.

[0004] According to a first aspect of the present invention, a telescopic contact-pressure docking conductive structure is provided, comprising:

[0005] A lifting body, wherein a reel and a driving member for driving the reel to rotate are provided in the lifting body;

[0006] A first insulating seat, on which a conductive column A and a spring for driving the conductive column A to reciprocate relative to the first insulating seat are mounted, the spring being sleeved on the conductive column A, the conductive column A being provided with an N docking end and an M electrical end, and the first insulating seat being provided with a snap-fit portion capable of being mounted on a fixed plate of a lifting body or a lifting platform;

[0007] A second insulating seat, on which a B conductive column is mounted, on which an N1 docking terminal and an M1 power terminal are provided, and the second insulating seat is provided with a snap-fit portion that can be mounted to a fixed plate or a lifting platform of the lifting body;

[0008] The first insulating seat is provided with a level 1 mounting hole, a step No. 1 is provided in the level 1 mounting hole, a level 2 mounting hole for the M electrical terminal to pass through is provided on the step No. 1, a step No. 2 is provided on the A conductive column, and the spring is provided between steps No. 1 and No. 2.

[0009] In a specific embodiment of the present invention, the outer surface of the M electrical terminal is provided with an E connecting thread, and an E1 limiting nut is screwed onto the E connecting thread, and the outer diameter of the E1 limiting nut is larger than the inner diameter of the No. 2 mounting hole.

[0010] In a specific embodiment of the present invention, the second insulating seat is provided with a No. 3 mounting hole, the outer surface of the M1 electrical terminal is provided with an F connecting thread, an F1 limiting nut is screwed on the F connecting thread, and the outer diameter of the F1 limiting nut is larger than the inner diameter of the No. 3 mounting hole.

[0011] In a specific embodiment of the present invention, the N1 docking end is provided with a docking platform, and the cross-section of the docking platform is elliptical, circular or polygonal.

[0012] In a specific embodiment of the present invention, the first insulating seat has a P docking portion and 2 to 4 mounting columns, the A conductive column is installed on the mounting column through a level 1 mounting hole, the second insulating seat has a P groove that can accommodate the P docking portion, and the B conductive column is installed at the bottom of the P groove.

[0013] In a specific embodiment of the present invention, the cross-section of the P docking portion is one of circular, rectangular or elliptical, and the cross-section of the P groove is one of circular, rectangular or elliptical.

[0014] In a specific embodiment of the present invention, the first insulating seat and the second insulating seat respectively include a guide portion and a boss portion connected to the embedding portion, the outer diameter of the guide portion is smaller than the outer diameter of the embedding portion, and the embedding portion is arranged between the guide portion and the boss portion.

[0015] In a specific embodiment of the present invention, a transition boss is provided between the guide portion and the engaging portion, an arc connecting portion is provided between the transition boss and the guide portion, and an arc connecting portion is provided between the transition boss and the guide portion.

[0016] According to a second aspect of the present invention, a lifting device is provided, including a lifting platform and a telescopic touch-pressure docking conductive structure. A fixed plate is provided on the lifting body, and the telescopic touch-pressure docking conductive structure is provided between the fixed plate and the lifting platform.

[0017] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects: the present invention sets a conductive column A and a conductive column B, and drives the conductive column A back and forth through a spring. After the conductive column A and the conductive column B are docked, the conductive column A and the conductive column B form an electrically conductive state after docking. The conductive column A is driven by the spring and a telescopic pressure is provided to the conductive column A, so that the contact surfaces of the N docking end and the N1 docking end of the conductive column A and the conductive column B are tightly attached. The solid conductive column can greatly improve the current load, spring elastic force and contact area difference, relax the contact pressure requirements, and improve the fault tolerance of docking. Even in the case of shaking of the lifting body and the lifting platform, normal electrical conduction can be achieved, which solves the defects of the prior art; and the first insulating seat and the second insulating seat are embedded in the fixed plate and the lifting platform, which is convenient for installation, improves assembly efficiency, and is also convenient for subsequent maintenance and replacement of damaged parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a conductive column A in one embodiment of the present invention;

[0021] Figure 3 This is a structural diagram of the first insulating seat in one embodiment of the utility model;

[0022] Figure 4 It is a structural diagram of the second embodiment of the utility model;

[0023] Figure 5 This is a structural diagram of the first insulating seat in the second embodiment of the present utility model;

[0024] Figure 6 It is a structural schematic diagram of the second insulating seat in the second embodiment of the utility model. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0030] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0031] Reference Figures 1 to 3 As shown, the lifting device includes a lifting platform 200 and a telescopic touch-pressure docking conductive structure. A fixed plate 100 is provided on the lifting body. The telescopic touch-pressure docking conductive structure is arranged between the fixed plate 100 of the lifting body and the lifting platform 200. The fixed plate 100 of the lifting body and the lifting platform 200 are respectively provided with a clamping hole. The telescopic touch-pressure docking conductive structure includes:

[0032] A lifting body is provided with a reel and a driving member for driving the reel to rotate; wherein the driving member can be a motor and a motor device.

[0033] A first insulating base 100 is provided with an A conductive post 11 and a spring 12 for driving the A conductive post 11 to reciprocate relative to the first insulating base 100. The spring 12 is sleeved on the A conductive post 11. The A conductive post 11 is provided with an N docking terminal 111 and an M electrical terminal 112. The first insulating base 100 is provided with a snap-fit portion 101 that can be mounted on the fixed plate 100 of the lifting body;

[0034] The second insulating seat 20 is provided with a B conductive column 21 , and the B conductive column 21 is provided with an N1 docking terminal 211 and an M1 power terminal 212 . The second insulating seat 20 is provided with a snap-fitting portion 101 that can be installed on the lifting platform 200 .

[0035] Of course, the first insulating seat 10 can be installed on the lifting platform 200, and the corresponding second insulating seat can be installed on the fixing plate 100 of the lifting body.

[0036] Preferably, the conductive pillars A 11 and B 21 can be made of solid conductors. Of course, the conductive pillars A 11 and B 21 can also be made of hollow cylinders with thicker walls.

[0037] The utility model sets the A conductive column 11 and the B conductive column 21. After the lifting platform 200 moves toward the fixed plate 100 close to the lifting body, the contact surface area of the N docking end 111 and the N1 docking end 211 is different. The N1 docking end 211 contacts the N docking end 111, and the N docking end 111 moves toward the M electrical end 112 and compresses the spring 12. After the A conductive column 11 and the B conductive column 21 are docked, the A conductive column 11 and the B conductive column 12 are docked to form an electrically conductive state. The spring drives the A conductive column 11 and provides a stretching pressure on the A conductive column 11, so that the A conductive column 11 and the B conductive column 12 are electrically connected. The contact surfaces of the N docking end 111 and the N1 docking end 211 of the electric post 12 are in close contact. The solid conductive post can greatly increase the current load, spring elastic force and contact area difference, relax the contact pressure requirements, and improve the fault tolerance of the docking. Even when the lifting body and the lifting platform are shaking, the electrical conduction can be normal, which solves the defects of the existing technology. After the lifting platform 200 moves toward the fixed plate 100 of the lifting body, the spring 12 drives the A conductive post 11 to move toward the B conductive post 21, and the N1 docking end 211 and the N docking end 111 are gradually separated. After the A conductive post 11 and the B conductive post 21 are completely separated, the circuit is disconnected. The first insulating seat 100 and the second insulating seat 20 are embedded in the fixed plate 100 of the lifting body and the lifting platform 200, which facilitates installation, improves assembly efficiency, and facilitates subsequent maintenance and replacement of damaged parts.

[0038] In one embodiment of the present invention, the first insulating seat 100 is provided with a No. 1 mounting hole 104, a No. 1 step 105 is provided in the No. 1 mounting hole 104, a No. 2 mounting hole 106 for the M electrical terminal 112 to pass through is provided on the No. 1 step 105, and a No. 2 step 114 is provided on the A conductive column 11. The spring 12 is arranged between the No. 1 step 105 and the No. 2 step 114 to facilitate the installation of the spring 12, so that the spring 12 drives the A conductive column 11 to move back and forth in the No. 1 mounting hole 104.

[0039] In one embodiment of the present invention, the outer surface of the M electrical terminal 112 is provided with an E connection thread 113, and an E1 limit nut 13 is screwed onto the E connection thread 113. The outer diameter of the E1 limit nut 13 is larger than the inner diameter of the No. 2 mounting hole 106. After the E1 limit nut 13 is screwed onto the E connection thread 113 and the position of the E1 limit nut 13 on the E connection thread 113 is adjusted, the compression state of the spring 12 can be adjusted. After the N1 docking end 211 is separated from the N docking end 111, the spring 12 drives the E1 limit nut 13 to move, and the E1 limit nut 13 contacts the end face of the No. 2 mounting hole 106 to limit the movement position of the A conductive column 11. Of course, the connection method of the M electrical terminal 112 can also adopt a flange or welding method instead of a threaded connection method.

[0040] In one embodiment of the present invention, the second insulating base 20 is provided with a No. 3 mounting hole, and the outer surface of the M1 electrical terminal is provided with an F connecting thread, onto which is screwed an F1 limiting nut 22. The outer diameter of the F1 limiting nut 22 is larger than the inner diameter of the No. 3 mounting hole, and the B conductive post 21 is mounted on the second insulating base 20 via the F1 limiting nut 22. Of course, the connection method of the M1 electrical terminal can also be flanged or welded instead of threaded.

[0041] In one embodiment of the present invention, the N1 docking end 211 is provided with a docking platform 213, and the cross-section of the docking platform 213 is elliptical, circular or polygonal. The docking platform 213 can increase the docking area of the A conductive column 11 and the B conductive column 21. Even if the fixed plate 100 and the lifting platform 200 of the lifting body are offset during the lifting process, the A conductive column 11 can still be electrically connected with the B conductive column 21, thereby providing the applicability of the lifting device. Of course, the N docking end 111 can also be provided with a docking platform, and the cross-section of the docking platform 213 is elliptical, circular or polygonal. The area of the docking platform of the N docking end 111 and the area of the docking platform 213 of the N1 docking end 211 can be the same. Alternatively, there is a difference between the area of the docking platform of the N docking end 111 and the area of the docking platform 213 of the N1 docking end 211, that is, the areas of the two are different.

[0042] In one embodiment of the present invention, the first insulating seat 100 and the second insulating seat 20 each include a guide portion 102 and a boss portion 103 connected to the engaging portion 101. The outer diameter of the guide portion 102 is smaller than the outer diameter of the engaging portion 101, and the engaging portion 101 is disposed between the guide portion 102 and the boss portion 103. The outer diameter of the engaging portion 101 matches the inner diameter of the engaging hole, making it difficult for the first insulating seat 100 and the second insulating seat 20 to fall out of the engaging hole. The outer diameter of the guide portion 102 is smaller than the inner diameter of the engaging hole, and the guide portion 102 primarily serves as a guide.

[0043] In one embodiment of the present invention, a transition boss 107 is provided between the guide portion 102 and the locking portion 101, and an arc connection portion is provided between the transition boss 107 and the guide portion 102, so that a smooth connection is achieved between the transition boss 107 and the guide portion 102. A circular arc connection portion is provided between the transition boss 107 and the guide portion 102, so that a smooth connection is achieved between the transition boss 107 and the guide portion 102.

[0044] In one embodiment of the present invention, Figure 4 、 Figure 5 and Figure 6 As shown, the first insulating seat 10 has a P docking portion 109 and 2 to 4 mounting columns 108, the A conductive column 11 is installed on the mounting column 108 through a level 1 mounting hole, and the second insulating seat 20 has a P groove 110 that can accommodate the P docking portion 109, and the B conductive column is installed at the bottom of the P groove 110. After the lifting platform 200 moves toward the fixed plate 100 close to the lifting body, the first insulating seat and the second insulating seat are docked with the P groove 110 through the P docking portion 109, and the N1 docking end 211 contacts the N docking end 111. The N docking end 111 moves toward the M electrical terminal 112 and compresses the spring 12. After the A conductive column 11 and the B conductive column 21 are docked, the A conductive column 11 and the B conductive column 12 form an electrically conductive state after docking. The spring drives the A conductive column 11 and provides telescopic pressure on the A conductive column 11, so that the contact surfaces of the N docking end 111 and the N1 docking end 211 of the A conductive column 11 and the B conductive column 12 are tightly attached. The solid conductive column can greatly increase the current load, spring elastic force and contact area difference, relax the contact pressure requirements, and improve the fault tolerance of docking.

[0045] In one embodiment of the present invention, the cross-section of the P-joint portion is one of circular, rectangular, or elliptical, and the cross-section of the P-groove is one of circular, rectangular, or elliptical. Of course, the cross-sections of the P-joint portion and the P-groove may also be other shapes, such as diamond, pentagonal, or hexagonal.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. The telescopic contact-pressure docking conductive structure is characterized by: include: A lifting body, wherein a reel and a driving member for driving the reel to rotate are provided in the lifting body; A first insulating seat, on which is mounted a conductive post A and a spring for driving the conductive post A to telescopically move relative to the first insulating seat, the spring being sleeved on the conductive post A, the conductive post A being provided with an N docking end and an M electrical end, and the first insulating seat being provided with a snap-fitting portion capable of being mounted on a fixed plate of a lifting body or a lifting platform; A second insulating seat, on which a B conductive column is mounted, on which an N1 docking terminal and an M1 power terminal are provided, and the second insulating seat is provided with a snap-fit portion that can be mounted to a fixed plate or a lifting platform of the lifting body; The first insulating seat is provided with a level 1 mounting hole, a step No. 1 is provided in the level 1 mounting hole, a level 2 mounting hole for the M electrical terminal to pass through is provided on the step No. 1, a step No. 2 is provided on the A conductive column, and the spring is provided between steps No. 1 and No.

2.

2. The telescopic contact-pressure docking conductive structure according to claim 1, characterized in that: An E connecting thread is provided on the outer surface of the M electrical terminal, and an E1 limiting nut is screwed onto the E connecting thread. The outer diameter of the E1 limiting nut is larger than the inner diameter of the No. 2 mounting hole.

3. The telescopic contact-pressure docking conductive structure according to claim 1, characterized in that: The second insulating seat is provided with a No. 3 mounting hole, the outer surface of the M1 electrical terminal is provided with an F connecting thread, an F1 limiting nut is screwed onto the F connecting thread, and the outer diameter of the F1 limiting nut is larger than the inner diameter of the No. 3 mounting hole.

4. The telescopic contact-pressure docking conductive structure according to claim 1, wherein: The N1 docking end is provided with a docking platform, and the cross section of the docking platform is elliptical, circular or polygonal.

5. The telescopic contact-pressure docking conductive structure according to any one of claims 1 to 4, characterized in that: The first insulating seat has a P docking portion and 2 to 4 mounting columns, the A conductive column is installed on the mounting column through a level 1 mounting hole, the second insulating seat has a P groove that can accommodate the P docking portion, and the B conductive column is installed at the bottom of the P groove.

6. The telescopic contact-pressure docking conductive structure according to claim 5, characterized in that: The cross-section of the P docking portion is one of circular, rectangular or elliptical, and the cross-section of the P groove is one of circular, rectangular or elliptical.

7. The telescopic contact-pressure docking conductive structure according to any one of claims 1 to 4, characterized in that: The first insulating seat and the second insulating seat respectively include a guide portion and a boss portion connected to the locking portion. The outer diameter of the guide portion is smaller than the outer diameter of the locking portion. The locking portion is arranged between the guide portion and the boss portion.

8. The telescopic contact-pressure docking conductive structure according to claim 7, characterized in that: A transition boss is provided between the guide portion and the locking portion, an arc connecting portion is provided between the transition boss and the guide portion, and an arc connecting portion is provided between the transition boss and the guide portion.

9. Lifting device, characterized in that, It comprises a lifting platform and the telescopic touch-pressure docking conductive structure according to any one of claims 1 to 8, a fixed plate is provided on the lifting body, and the telescopic touch-pressure docking conductive structure is provided between the fixed plate of the lifting body and the lifting platform.

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