Stretching device based on rigid chain driving

Abstract

The utility model discloses a stretching device based on rigid chain driving, which belongs to the technical field of electric power cabinet movement and comprises a frame for carrying an electric power cabinet, two groups of power chain boxes are fixedly mounted on the frame, and outlet channels are mounted at the front ends of the power chain boxes. A rigid chain group is accommodated and mounted in the power chain box, and the rigid chain group is moved and output through the outlet channel; a stretching seat is fixedly installed on the outer section of the rigid chain set, a stretching rod is connected into the stretching seat in a clamped and penetrating mode, and the stretching rod is assembled on the electric power cabinet. A locking mechanism for reinforcing the combination of the stretching seat and the stretching rod is arranged on the stretching seat; the rigid chain group drives the stretching seat to move directionally, so that the stretching seat is movably clamped outside the stretching rod, the locking mechanism on the stretching seat reinforces the connection between the stretching seat and the stretching rod, and the stability of the connection structure of the stretching seat and the stretching rod is kept when the power cabinet is stretched and moved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric power cabinet movement technical field, concretely is a kind of stretching device based on rigid chain drive. BACKGROUND

[0002] The size and weight of large electric power cabinet are large, and the embedded large electric power cabinet needs to be moved outward for daily inspection and maintenance. The machine for carrying the electric power cabinet is limited to the surface of the electric power cabinet. The electric power cabinet is moved outward by the machine, which is high in carrying efficiency and labor-saving.

[0003] For example, patent CN118336573A discloses an electric power cabinet shifting device for indoor electric power construction, which includes a fixed column, a protective cover fixedly installed on the upper surface of the fixed column, a support plate fixedly installed on the inner wall of the fixed column, an installation cover fixedly installed on the side wall of the fixed column, a lifting assembly provided on the inner wall of the fixed column, an inclined assembly and a balancing assembly provided on the upper surface of the support plate. The lifting assembly is provided, and the limiting plate returns the electric power cabinet under the action of the extension spring while generating a certain pushing force on the electric power cabinet. Under the action of the ball, the electric power cabinet is pushed to the upper surface of the lifting plate, and then the electric power cabinet is shifted to completely lift the electric power cabinet, which can effectively avoid the friction between the electric power cabinet and the ground during shifting, causing damage to the electric power cabinet. However, the space reserved on the top surface, left and right sides, and rear end of the embedded electric power cabinet is small. The electric power cabinet needs to be stretched outward in a straight line to avoid collision with the outside of the electric power cabinet. The existing electric power cabinet carrying device is not convenient for stretching and moving the electric power cabinet outward, and it is difficult to carry the embedded electric power cabinet. Moreover, the weight of the electric power cabinet is large, and the connection between the electric power cabinet and the carrying device may be loose during stretching and carrying, which requires manual adjustment and reinforcement.

[0004] In view of the above problems, it is necessary to innovate and design on the basis of the existing electric power cabinet carrying device. INVENTION CONTENTS

[0005] The utility model aims at providing a stretching device based on rigid chain drive to solve the problem of small space reserved on the top surface, left and right sides, and rear end of the embedded electric power cabinet, the need to stretch the electric power cabinet outward in a straight line before carrying, the inconvenience of the existing electric power cabinet carrying device for stretching and moving the electric power cabinet outward, and the difficulty of carrying the embedded electric power cabinet.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of stretching device based on rigid chain drive, including the vehicle frame for carrying electric power cabinet, two groups of power chain box are fixedly installed on the vehicle frame, and outlet passage is installed in the front end of power chain box, rigid chain group is received and installed in power chain box, and rigid chain group moves output by outlet passage;The outer section of rigid chain group is fixedly installed with stretching seat, and stretching rod is connected in the interlocking of stretching seat, and stretching rod is assembled on electric power cabinet;Locking mechanism combined with stretching rod is provided on the stretching seat.

[0007] Preferably, the stretching seat is provided with a through slot on the side away from the rigid chain group, and a positioning groove is formed in the stretching seat, and the through slot is connected with the positioning groove; the height of the through slot is greater than the diameter of the stretching rod, and the stretching rod is clamped and installed in the positioning groove through the through slot.

[0008] Preferably, the locking mechanism comprises a lower protective cover fixed on the upper surface of the stretching seat, a gasket is slidably connected in the lower protective cover, a locking pin is vertically fixed on the gasket, and an embedded groove is formed in the locking pin along the axial direction; a locking hole is formed in the stretching rod.

[0009] Preferably, the lower end surface of the locking pin is in a hemispherical structure, and the locking pin is clamped and connected with the stretching rod through the locking hole.

[0010] Preferably, the inner top surface of the lower protective cover is fixedly connected with a guide round rod, and the locking pin is slidably sleeved on the locking pin through the embedded groove; a pressing piece is installed on the outer portion of the guide round rod, and a limiting spring is elastically connected between the pressing piece and the gasket.

[0011] Preferably, the lower protective cover is provided with a moving mechanism for regulating the elastic potential energy of the limiting spring.

[0012] Preferably, the moving mechanism comprises an upper protective cover fixedly installed on the upper surface of the lower protective cover, a displacement rod is vertically slidably connected to the top surface of the lower protective cover, the displacement rod is fixedly connected to the upper surface of the pressing piece, and the pressing piece is slidably sleeved on the outer portion of the guide round rod; a knob is rotatably installed on the upper surface of the upper protective cover, a threaded rod is coaxially connected to the knob, the threaded rod is rotatably installed in the inner portion of the upper protective cover, an internally threaded seat is threadedly installed on the outer portion of the threaded rod, and the internally threaded seat is fixedly installed on the upper surface of the displacement rod.

[0013] Compared with the prior art, the stretching device based on rigid chain drive has the following advantages: the rigid chain group is controlled to move outward by the power chain box, the stretching seat is pushed to move close to the electric power cabinet by the rigid chain group, the stretching rod on the electric power cabinet is clamped and connected, the stretching seat and the stretching rod after clamping are used to move the rigid chain group in the opposite direction, and the purpose of linearly stretching and moving the electric power cabinet is achieved.

[0014] Further, the stretching seat is provided with a locking mechanism, when the stretching seat is moved to be clamped on the outside of the stretching rod, the stretching rod extrudes the locking pin, the locking pin is clamped into the locking hole in the stretching rod under the elastic thrust of the limiting spring, and the position of the stretching rod in the stretching seat is preliminarily clamped.

[0015] The stretching seat is correspondingly moved downward on the outside of the stretching rod, the locking pin on the stretching seat is moved downward and clamped into the inside of the stretching rod, the locking pin is stably clamped with the clamping structure of the stretching rod, and the connecting structure between the stretching seat and the stretching rod is stably kept from being loosened when the stretching mobile power cabinet is moved.

[0016] Further, the stretching seat is provided with a moving mechanism, the limiting spring arranged in the lower protective cover can elastically adjust the moving position of the locking pin, the pressing sheet is sleeved on the guide round rod and moves by control, the elastic potential energy of the limiting spring between the pressing sheet and the gasket is adjusted, and then the clamping locking force of the locking pin is adjusted.

[0017] The threaded rod is controlled to rotate through the knob, the inner threaded seat and the displacement rod are controlled to move longitudinally under the threaded transmission, the displacement rod drives the pressing sheet to synchronously move, and then the moving position of the pressing sheet which is sleeved on the outside of the guide sliding rod is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model vehicle frame.

[0019] Figure 2 It is a three-dimensional structure schematic view of the utility model power chain box.

[0020] Figure 3 It is a three-dimensional structure schematic view of the utility model rigid chain group.

[0021] Figure 4 It is a three-dimensional structure schematic view of the utility model stretching seat.

[0022] Figure 5 It is a three-dimensional structure schematic view of the utility model locking pin.

[0023] Figure 6 It is a sectional structure schematic view of the utility model lower protective cover.

[0024] Figure 7 It is a sectional structure schematic view of the utility model upper protective cover.

[0025] In the figure: 1, frame; 2, power chain box; 3, outlet passage; 4, rigid chain set; 5, stretching seat; 6, stretching rod; 7, through slot; 8, positioning groove; 9, lower protective cover; 10, gasket; 11, locking pin; 12, embedded groove; 13, locking hole; 14, guide round rod; 15, pressing piece; 16, limiting spring; 17, upper protective cover; 18, displacement rod; 19, knob; 20, threaded rod; 21, internally threaded seat. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than 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.

[0027] Embodiment one: please refer to Figures 1-7 The utility model provides the following technical scheme: a stretching device based on rigid chain drive, including the frame 1 for carrying the power cabinet, two groups of power chain boxes 2 are fixedly installed on the frame 1, and the outlet passage 3 is installed at the front end of the power chain box 2, the rigid chain set 4 is received and installed in the power chain box 2, and the rigid chain set 4 moves and outputs through the outlet passage 3, the stretching seat 5 is fixedly installed on the outer section of the rigid chain set 4, the stretching rod 6 is connected in the stretching seat 5 in the form of clamping and penetrating, and the stretching rod 6 is assembled on the power cabinet, and the locking mechanism combined with the stretching rod 6 is arranged on the stretching seat 5.

[0028] The through slot 7 is formed on the side of the stretching seat 5 away from the rigid chain set 4, the positioning groove 8 is formed in the inside of the stretching seat 5, and the positioning groove 8 is connected with the through slot 7 in the form of penetrating connection, the height of the through slot 7 is greater than the diameter of the stretching rod 6, and the stretching rod 6 is clamped and installed in the positioning groove 8 by penetrating the through slot 7.

[0029] The locking mechanism includes the lower protective cover 9 fixed on the upper surface of the stretching seat 5, the gasket 10 is slidably connected in the inside of the lower protective cover 9, the locking pin 11 is vertically fixed on the gasket 10, and the embedded groove 12 is formed in the inside of the locking pin 11 along the axial direction, and the locking hole 13 is formed on the stretching rod 6.

[0030] The lower end surface of the locking pin 11 is in the form of hemispherical structure, and the locking pin 11 is clamped and connected with the stretching rod 6 through the locking hole 13.

[0031] The guide round rod 14 is fixedly connected to the inner top surface of the lower protective cover 9, and the locking pin 11 is slidably sleeved on the locking pin 11 through the embedded groove 12, the pressing piece 15 is installed on the outside of the guide round rod 14, and the limiting spring 16 is elastically connected between the pressing piece 15 and the gasket 10.

[0032] The control frame 1 moves to the position in front of the power cabinet, the stretching rod 6 is assembled and installed outside the power cabinet, the power chain box 2 is started to control the rigid chain set 4 to move outward, the rigid chain set 4 moves outward through the outlet channel 3, and the rigid chain set 4 pushes the stretching seat 5 to move outward, the stretching seat 5 is clamped to the outside of the stretching rod 6, the stretching rod 6 enters the through slot 7 in the stretching seat 5, when the stretching rod 6 moves to the inside of the locking hole 13, the locking pin 11 is no longer extruded, the limiting spring 16 is elastically released, the gasket 10 and the locking pin 11 are pushed downward, the locking pin 11 is clamped into the locking hole 13, and the clamping structure of the locking pin 11 and the locking hole 13 can preliminarily limit the position of the stretching rod 6 arranged in the stretching seat 5.

[0033] Then the control frame 1 is controlled to move downward, the stretching seat 5 is synchronously moved downward by the control frame 1, so that the stretching seat 5 clamped outside the stretching rod 6 moves downward, the stretching rod 6 moves into the positioning slot 8 in the stretching seat 5, and the locking pin 11 moves into the locking hole 13 in the stretching rod 6, so that the stretching rod 6 is stably arranged in the stretching seat 5, and the power chain box 2 is started to control the rigid chain set 4 to move reversely to stretch the power cabinet.

[0034] In the embodiment one, the moving mechanism is further disclosed, and the specific structure is as follows: the lower protective cover 9 is provided with a moving mechanism for regulating and controlling the elastic potential of the limiting spring 16; the moving mechanism comprises an upper protective cover 17 fixedly installed on the upper surface of the lower protective cover 9, the lower protective cover 9 is vertically and slidably connected with a displacement rod 18 on the top surface, the displacement rod 18 is fixedly connected to the upper surface of the pressing piece 15, and the pressing piece 15 is slidably sleeved outside the guide round rod 14; the upper protective cover 17 is rotatably installed with a knob 19 on the upper surface, the knob 19 is coaxially connected with a threaded rod 20, the threaded rod 20 is rotatably installed in the inside of the upper protective cover 17, and the outside of the threaded rod 20 is threadedly installed with an internal thread seat 21, and the internal thread seat 21 is fixedly installed on the upper surface of the displacement rod 18.

[0035] The control knob 19 is rotated to drive the threaded rod 20 to rotate synchronously, the threaded rod 20 is in threaded connection with the inner threaded seat 21, the inner threaded seat 21 is longitudinally moved under the threaded transmission, the inner threaded seat 21 drives the displacement rod 18 to move synchronously, the displacement rod 18 pushes the pressing plate 15 to longitudinally slide and move outside the guide round rod 14, the limiting spring 16 connected between the pressing plate 15 and the gasket 10 is compressed or stretched, so that the elastic potential energy of the limiting spring 16 is adjusted, the limiting spring 16 can limit the moving position of the locking pin 11, and the elastic potential energy of the limiting spring 16 is adjusted, so that the locking force of the locking pin 11 clamped in the locking hole 13 can be controlled.

[0036] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "link", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium. For ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A stretching device based on rigid chain drive, comprising a carriage (1) for handling power cabinets, characterized in that: The frame (1) is fixedly installed with two groups of power chain boxes (2), and the front end of the power chain box (2) is provided with an outlet passage (3), the power chain box (2) is installed with a rigid chain group (4), and the rigid chain group (4) is moved and output through the outlet passage (3); The outer section of the rigid chain group (4) is fixedly installed with a stretching seat (5), the stretching seat (5) is connected with a stretching rod (6) through clamping and penetrating, and the stretching rod (6) is assembled on the power cabinet; The stretching seat (5) is provided with a locking mechanism combined with the stretching rod (6).

2. A stretching apparatus based on rigid chain drive according to claim 1, characterized in that: The side of the stretching seat (5) away from the rigid chain group (4) is provided with a through groove (7), and the inside of the stretching seat (5) is provided with a positioning groove (8), and the positioning groove (8) is connected with the through groove (7) through connection; The height of the through groove (7) is greater than the diameter of the stretching rod (6), and the stretching rod (6) is clamped and installed in the positioning groove (8) through the through groove (7).

3. A stretching apparatus based on rigid chain drive as claimed in claim 1, wherein: The locking mechanism comprises a lower protective cover (9) fixed on the upper surface of the stretching seat (5), a gasket (10) slidably connected in the lower protective cover (9), and a locking pin (11) vertically fixed on the gasket (10), and an embedded groove (12) is formed in the locking pin (11) along the axis direction; The stretching rod (6) is provided with a locking hole (13).

4. A stretching apparatus based on rigid chain drive according to claim 3, characterized in that: The lower end surface of the locking pin (11) is in a hemispherical structure, and the locking pin (11) is clamped and connected with the stretching rod (6) through the locking hole (13).

5. A stretching apparatus based on rigid chain drive as claimed in claim 3, wherein: The inner top surface of the lower protective cover (9) is fixedly connected with a guide round rod (14), and the locking pin (11) is slidably sleeved on the locking pin (11) through the embedded groove (12); The outer portion of the guide round rod (14) is provided with a pressing sheet (15), and a limiting spring (16) is elastically connected between the pressing sheet (15) and the gasket (10).

6. A stretching apparatus based on rigid chain drive according to claim 5, characterized in that: The lower protective cover (9) is provided with a moving mechanism for regulating the elastic potential of the limiting spring (16).

7. A stretching apparatus based on rigid chain drive according to claim 6, characterized in that: The moving mechanism comprises an upper protective cover (17) fixedly installed on the upper surface of the lower protective cover (9), a displacement rod (18) vertically and slidably connected to the top surface of the lower protective cover (9), the displacement rod (18) is fixedly connected to the upper surface of the pressing sheet (15), and the pressing sheet (15) is slidably sleeved on the outer portion of the guide round rod (14); The upper surface of the upper protective cover (17) is rotatably installed with a knob (19), the knob (19) is coaxially connected with a threaded rod (20), the threaded rod (20) is rotatably installed in the inner portion of the upper protective cover (17), and the outer portion of the threaded rod (20) is threadedly installed with an internal thread seat (21), and the internal thread seat (21) is fixedly installed on the upper surface of the displacement rod (18).

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