Portable rapid installation device of handcart switch

Abstract

The utility model relates to the technical field of transformer station handcart switch installation, and specifically relates to a portable rapid installation device of a handcart switch. The single-layer shear fork connecting rod mechanism comprises two groups of shear fork arms, the two groups of shear fork arms are arranged in a crossed manner, cross points are hinged through hinge shafts arranged front and back, and the lower ends of the two groups of shear fork arms are hinged to the left part and the right part of the bottom frame respectively; the left part and the right part of the top frame are respectively hinged with the upper ends of the two groups of shear fork arms; the supporting platform is fixed on the top frame; the adjusting assembly comprises a screw rod, a mounting base and a nut base, the screw rod is perpendicular to the front-back direction and is obliquely arranged, the mounting base is fixed to the top frame, and one end of the screw rod is connected into the mounting base and can only rotate around the axis of the screw rod relative to the mounting base and swing around the axis arranged front and back; the nut seat is rotationally connected to one of the shear fork arms, the rotating axis is arranged front and back, and the other end of the screw is screwed into the nut seat. The device is convenient to carry and can be suitable for installation at different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of substation trolley switch installation, in particular to a convenient quick installation device for a trolley switch. Background Art

[0002] During the construction of highway projects, tunnel construction is often involved, and the tunnel needs to be equipped with substation facilities to supply power to tunnel equipment. In order to save costs and reduce construction, box-type substations are often used instead of building substations. Many box-type substations are located on slopes, and large mechanical equipment (cranes, forklifts, and pallet trucks) cannot reach the site. The equipment needs to be disassembled and installed, especially the trolley switch of the high-voltage cabinet, which needs to be installed to the specified height of the cabinet.

[0003] The existing trolley switch is generally installed by a bracket of fixed height. However, this method has the following defects: first, it is heavy, occupies a large space, and is inconvenient to carry; second, it is only applicable to the installation of trolley switches of fixed height, and has poor applicability. Utility Model Content

[0004] In order to overcome the technical defects of the existing trolley switch installation equipment, such as inconvenient carrying and poor applicability, the utility model provides a convenient and quick installation device for a trolley switch.

[0005] The utility model provides a convenient quick installation device for a trolley switch, comprising:

[0006] Bottom frame;

[0007] A single-layer scissor-type connecting rod mechanism comprises two sets of scissor-type arms, the two sets of scissor-type arms are cross-arranged and the intersections are hinged through hinge shafts arranged front and back, and the lower ends of the two sets of scissor-type arms are respectively hinged to the left and right parts of the bottom frame;

[0008] A top frame, the left and right parts of which are respectively hinged to the upper ends of the two sets of scissor arms;

[0009] A supporting platform, which is fixed on the top frame and is suitable for supporting the trolley switch;

[0010] An adjustment assembly includes a screw rod, a mounting seat and a nut seat, wherein the screw rod is perpendicular to the front-to-back direction and is arranged obliquely, the mounting seat is fixed on the top frame, one end of the screw rod is connected in the mounting seat and can only rotate around its own axis relative to the mounting seat and swing around an axis arranged front-to-back, the nut seat is rotatably connected to one of the scissor arms and the rotation axis is arranged front-to-back, and the other end of the screw rod is threaded into the nut seat.

[0011] Optionally, the support platform includes a mounting frame and a plurality of rollers, the mounting frame is fixed on the top frame, the rollers are mounted on the mounting frame and arranged along the axis line along the front and back, and all the rollers form at least one row distributed left and right and all protrude above the mounting frame.

[0012] Optionally, the mounting seat includes a bearing seat and a spherical bearing, the bearing seat is fixed on the scissor arm or the top frame, and the spherical bearing is mounted on the bearing seat.

[0013] Optionally, two ends of the screw rod are respectively located on the left and right sides of the intersection of the two sets of scissor arms.

[0014] Optionally, the scissor arm includes two shear rods and a cross beam, the cross beam is arranged front to back and two ends of the cross beam are respectively fixedly connected to the two shear rods, and the two shear rods are parallel to each other and perpendicular to the cross beam.

[0015] Optionally, two mounting beams are provided on the crossbeam of the scissor arm on which the nut seat is installed. The two mounting beams are parallel to each other and perpendicular to the crossbeam. The nut seat is placed between the two crossbeams and the front and rear sides are rotatably connected to the corresponding crossbeams through pins arranged front and rear.

[0016] Optionally, the mounting beam is arranged with a plurality of mounting positions along its length direction, and the nut seat is detachably mounted on one group of the mounting positions.

[0017] Optionally, a universal wheel is provided below the bottom frame, and the universal wheel is provided with a locking structure.

[0018] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0019] The utility model provides a convenient and quick installation device for a trolley switch, including a bottom frame, a single-layer scissor-type connecting rod structure, a top frame, a support platform and an adjustment component. The adjustment component includes a screw, a mounting seat and a nut seat. By rotating the screw, the single-layer scissor-type connecting rod mechanism can be driven to deform, so that the height of the support platform changes, and it can be suitable for the installation of trolley switches of different heights, and has stronger applicability. At the same time, the adjustment component of the device adopts a simple screw and nut pair, which is light in weight, and the entire device can be switched to a folded state through the adjustment component, which occupies a small volume and is more convenient to carry and transport. In addition, the screw of the device is arranged at an angle, and the mounting seat is fixed on the top frame. When operating, it is only necessary to rotate the screw connected to the mounting seat manually or with an electric tool. The operation point is at a higher position, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram showing the overall structure of an embodiment of the utility model;

[0023] Figure 2 A schematic diagram showing the assembly structure of the nut seat in the embodiment of the utility model;

[0024] Figure 3 A schematic diagram showing the assembly structure of the mounting base in an embodiment of the utility model is shown.

[0025] In the figure:

[0026] 1. Bottom frame; 2. Single-layer scissor-type connecting rod mechanism; 21. Shear rod; 22. Cross beam; 23. Mounting beam; 231. Mounting position; 3. Top frame; 4. Support platform; 41. Mounting frame; 42. Roller; 5. Adjustment assembly; 51. Screw rod; 52. Mounting seat; 521. Bearing seat; 522. Spherical bearing; 53. Nut seat; 531. Pin; 6. Universal wheel. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] Reference Figures 1 to 3 The present embodiment provides a convenient and quick installation device for a trolley switch, comprising a bottom frame 1, a single-layer scissor-type connecting rod mechanism 2, a top frame 3, a supporting platform 4 and an adjusting component 5.

[0032] Bottom frame 1:

[0033] It is easy to understand that the bottom frame 1 mainly provides structural support for the upper structure.

[0034] In this embodiment, the bottom frame 1 is a rectangular frame. In other embodiments, the bottom frame 1 can also be a parallelogram or other shapes.

[0035] Furthermore, a universal wheel 6 is provided below the bottom frame 1, and the universal wheel 6 is provided with a locking structure. The universal wheel 6 facilitates the movement of the entire device. The main function of the locking structure is to achieve self-locking of the universal wheel 6 to prevent the vehicle from slipping, and the structure commonly used on the existing universal wheel 6 can be specifically adopted.

[0036] Single-layer scissor linkage mechanism 2:

[0037] The single-layer scissor linkage mechanism 2 includes two groups of scissor arms, which are arranged crosswise and hinged at the intersection through hinge shafts arranged front and back, and the lower ends of the two groups of scissor arms are hinged to the left and right parts of the bottom frame 1 respectively.

[0038] In this embodiment, the scissor arm includes two shear rods 21 and a cross beam 22. The cross beam 22 is arranged front and back and fixedly connected to the two shear rods 21 at both ends. The two shear rods 21 are parallel to each other and perpendicular to the cross beam 22. The two shear rods 21 of the scissor arm can support the front and rear of the top frame 3, and the support is more stable. The two shear rods 21 and the cross beam 22 form an integral structure with stronger structural rigidity. In other embodiments, the scissor arm can also be provided with only one shear rod 21; the cross beam 22 can also be omitted.

[0039] It is easy to understand that, since the hinge axis of the scissor point is arranged front to back, the hinge axis of the lower end of the scissor arm and the bottom frame 1 is also arranged front to back to form a scissor connecting rod structure.

[0040] Top frame 3:

[0041] The left and right parts of the top frame 3 are respectively hinged to the upper ends of the two groups of scissor arms.

[0042] In this embodiment, the top frame 3 is a rectangular frame. In other embodiments, the bottom frame 1 can also be a parallelogram or other shapes.

[0043] It is easy to understand that, since the hinge axis of the scissor point is arranged front to back, the hinge axis of the upper end of the scissor arm and the top frame 3 is also arranged front to back to form a scissor-type connecting rod structure.

[0044] Support platform 4:

[0045] The supporting platform 4 is fixed on the top frame 3 and is suitable for supporting the trolley switch.

[0046] In this embodiment, the support platform 4 includes a mounting frame 41 and a plurality of rollers 42. The mounting frame 41 is fixed on the top frame 3. The rollers 42 are mounted on the mounting frame 41 and arranged along the front and back axes. All rollers 42 form at least one row distributed left and right and are all protruding above the mounting frame 41. When in use, the trolley switch is placed on the rollers 42, which converts the sliding friction into the rotating friction, making it easier to push the trolley switch into or pull it out of the cabinet. In other embodiments, the support platform 4 can also be set to a flat plate shape.

[0047] Adjustment component 5:

[0048] The adjustment assembly 5 includes a screw rod 51, a mounting seat 52 and a nut seat 53. The screw rod 51 is perpendicular to the front-to-back direction and is arranged obliquely. The mounting seat 52 is fixed on the top frame 3. One end of the screw rod 51 is connected to the mounting seat 52 and can only rotate around its own axis relative to the mounting seat 52 and swing around the axis arranged front-to-back. The nut seat 53 is rotatably connected to one of the scissor arms and the rotation axis is arranged front-to-back. The other end of the screw rod 51 is threaded into the nut seat 53.

[0049] In this embodiment, the mounting seat 52 includes a bearing seat 521 and a joint bearing 522, the bearing seat 521 is fixed on the scissor arm or the top frame 3, and the joint bearing 522 is installed on the bearing seat 521. When in use, the adjustable characteristic of the joint bearing 522 is used to realize the swing of the screw 51 relative to the mounting seat 52. The mounting seat 52 is set to be more flexible for the joint bearing 522 to rotate, and it can also meet the requirements of axial bearing capacity. In other embodiments, the mounting seat 52 may also include a rolling bearing and a connecting pin, the screw 51 is interference-fitted in the inner ring of the rolling bearing, and the front and rear sides of the outer ring of the rolling bearing are rotatably connected to the top frame 3 through the connecting pin, so that the screw 51 can swing relative to the mounting seat 52; the rolling bearing can also be replaced by a cylinder, the clearance of the screw 51 is adjusted in the cylinder, and the position limiter is fixed on the parts of the screw 51 on both sides of the cylinder.

[0050] It should be noted that one end of the screw rod 51 is connected to the mounting seat 52 and can only rotate around its own axis and swing around the axis arranged front and back relative to the mounting seat 52, that is, the screw rod 51 cannot undergo axial displacement relative to the mounting seat 52.

[0051] In this embodiment, the two ends of the screw rod 51 are respectively located on the left and right sides of the intersection of the two sets of scissor arms. The screw rod 51 is located on the left and right sides of the scissor point, so that the angle of the screw rod 51 is more gentle, the span of the two installation points of the screw rod 51 is larger, and the adjustment process is more stable. In other embodiments, the two ends of the screw rod 51 can also be located on the same side of the intersection of the two sets of scissor arms.

[0052] In this embodiment, two mounting beams 23 are provided on the cross beam 22 of the scissor arm on which the nut seat 53 is installed. The two mounting beams 23 are parallel to each other and perpendicular to the cross beam 22. The nut seat 53 is placed between the two cross beams 22 and both front and rear sides are rotatably connected to the corresponding cross beam 22 through the front and rear pins 531. In other embodiments, a mounting groove can also be provided on the cross beam 22, and the nut seat 53 is placed in the mounting groove and the rotatable connection is achieved through the pin 531.

[0053] Further, the mounting beam 23 is arranged with a plurality of mounting positions 231 along its length direction, and the nut seat 53 is detachably mounted on one group of mounting positions 231. By installing the nut seat 53 on different mounting positions 231, the height range can be adjusted to better adapt to the installation of trolley switches with different height requirements.

[0054] Specifically, one end of the pin shaft 531 may be provided with a thread, and screw sleeves are fixed on the front and rear sides of the nut seat 53. During installation, the pin shaft 531 passes through the installation beam 23 and is then screwed into the screw sleeve to achieve a detachable connection.

[0055] The working principle of the portable quick installation device of the trolley switch of this embodiment is as follows:

[0056] First, place the trolley switch on the support platform 4, then push the entire device to move through the universal wheel 6, and when it moves to the position where the trolley switch needs to be installed, start the locking structure to lock the universal wheel 6, then rotate the screw 51 manually or with the help of an electric tool to raise the support platform 4 to the installation height, and finally push the trolley switch into the cabinet through the roller 42 to complete the installation of the trolley switch. The same principle applies when pulling the trolley switch out of the cabinet, but the operation is reversed.

[0057] The above is only a specific implementation of the utility model, so that those skilled in the art can understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A convenient quick installation device for a trolley switch, characterized in that: include: Bottom frame (1); A single-layer scissor-type connecting rod mechanism (2), comprising two sets of scissor-type arms, the two sets of scissor-type arms are cross-arranged and the intersections are hingedly connected via hinge shafts arranged front and back, and the lower ends of the two sets of scissor-type arms are respectively hingedly connected to the left and right parts of the bottom frame (1); A top frame (3), the left and right parts of which are respectively hinged to the upper ends of the two sets of scissor arms; A supporting platform (4) fixed on the top frame (3) and suitable for supporting a trolley switch; An adjustment assembly (5) comprises a screw rod (51), a mounting seat (52) and a nut seat (53), wherein the screw rod (51) is perpendicular to the front-rear direction and is arranged obliquely, the mounting seat (52) is fixed on the top frame (3), one end of the screw rod (51) is connected to the mounting seat (52) and can only rotate around its own axis relative to the mounting seat (52) and swing around an axis arranged front-to-rear, the nut seat (53) is rotatably connected to one of the scissor arms and the rotation axis is arranged front-to-rear, and the other end of the screw rod (51) is threaded into the nut seat (53).

2. The portable quick installation device for the trolley switch according to claim 1, characterized in that: The support platform (4) comprises a mounting frame (41) and a plurality of rollers (42); the mounting frame (41) is fixed on the top frame (3); the rollers (42) are mounted on the mounting frame (41) and arranged along the axis line in a front-to-back direction; all the rollers (42) form at least one row distributed left and right and all protrude above the mounting frame (41).

3. The portable quick installation device for the trolley switch according to claim 1, characterized in that: The mounting seat (52) comprises a bearing seat (521) and a spherical bearing (522); the bearing seat (521) is fixed on the scissor arm or the top frame (3); and the spherical bearing (522) is mounted on the bearing seat (521).

4. The portable quick installation device for a trolley switch according to claim 1, characterized in that: The two ends of the screw rod (51) are respectively located on the left and right sides of the intersection of the two sets of scissor arms.

5. The convenient quick installation device for a trolley switch according to any one of claims 1 to 4, characterized in that: The scissor arms comprise two shear rods (21) and a cross beam (22); the cross beam (22) is arranged front to back and has two ends respectively fixedly connected to the two shear rods (21); the two shear rods (21) are parallel to each other and perpendicular to the cross beam (22).

6. The convenient quick installation device for the trolley switch according to claim 5, characterized in that: Two mounting beams (23) are provided on the crossbeam (22) of the scissor arm on which the nut seat (53) is installed. The two mounting beams (23) are parallel to each other and perpendicular to the crossbeam (22). The nut seat (53) is placed between the two crossbeams (22) and both front and rear sides are rotatably connected to the corresponding crossbeam (22) through pins (531) arranged front and rear.

7. The portable quick installation device for a trolley switch according to claim 6, characterized in that: The mounting beam (23) is provided with a plurality of mounting positions (231) along its length direction, and the nut seat (53) is detachably mounted on one group of the mounting positions (231).

8. The portable quick installation device for a trolley switch according to claim 1, characterized in that: A universal wheel (6) is provided below the bottom frame (1), and the universal wheel (6) is provided with a locking structure.

Images