Frequency converter convenient to assemble

Abstract

The utility model relates to a frequency converter convenient to assemble, which comprises a frequency converter main body, hinges are symmetrically arranged on the right side of the frequency converter main body, a door plate is rotatably connected between the hinges through a torsion spring, elastic mounting seats are symmetrically arranged on the rear side of the frequency converter main body, and upper latches and lower latches extend from the bottoms of the rear sides of the elastic mounting seats. A sliding hole is formed in the rear side of the elastic mounting seat, a sliding rod is slidably arranged in the sliding hole, a fluted disc is rotatably arranged in the middle of the sliding rod, and a fan-shaped abutting block is movably mounted on the front side of the fluted disc through a connecting plate. According to the utility model, the torsion spring is selected to control the rotation of the door plate, so that the door plate can be kept in a closed state without external force, and the sealing performance and the safety of the frequency converter are ensured to a certain extent; meanwhile, the upper clamping teeth and the lower clamping teeth are both connected with the fluted disc, fastening and limiting are conducted on the door plank through multiple resistances, then limiting control can be conducted on the opened door plank through a limiting component only by connecting the limiting component to the fluted disc, the opened state of the door plank is kept, and operation of workers is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of frequency converters, and in particular relates to a frequency converter which is convenient to assemble. Background Art

[0002] In the daily operation of the inverter, its internal components need to be closely protected, which requires the inverter to have good sealing properties. Bolts and other fastening parts are generally used to seal the door panels of the inverter to ensure that the internal components will not be disturbed by the external environment when the equipment is running. However, when assembly or maintenance is required, the staff needs to spend extra time and energy to unscrew these bolts, which is inefficient.

[0003] Therefore, a door panel controlled by a torsion spring is selected. The torsion spring allows the door panel to automatically return to the closed state when no external force is required. This improves the sealing and safety of the inverter to a certain extent, but it also brings some problems during actual use: the staff needs to continue to apply force to the door panel during maintenance and assembly to maintain its open state, which undoubtedly increases the difficulty of maintenance operations and may even lead to a significant decrease in maintenance efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a frequency converter which is easy to assemble, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inverter that is easy to assemble, comprising an inverter body, hinges symmetrically arranged on the right side of the inverter body, a door panel rotatably connected between the hinges via a torsion spring, an elastic mounting seat symmetrically arranged on the rear side of the inverter body, upper and lower teeth extending from the rear bottom of the elastic mounting seat, a sliding hole opened on the rear side of the elastic mounting seat, a sliding rod slidably arranged in the sliding hole, a gear disk rotatably arranged in the middle of the sliding rod, and a fan-shaped stop block movably installed on the front side of the gear disk via a connecting plate.

[0006] Preferably, the fan-shaped stop block is slidably mounted on the right side of the connecting plate via a guide rod, and a return spring is sleeved on the guide rod.

[0007] Preferably, a limit block is fixedly provided on the guide rod at a position close to the fan-shaped stop block, and the return spring is connected between the connecting plate and the limit block.

[0008] Preferably, a square bolt head is provided on the top of the slide rod, and an eccentric lock handle is rotatably connected to the top of the square bolt head.

[0009] Preferably, a handle is embedded on the right front side of the door panel.

[0010] Preferably, a clamping plate is rotatably provided on the right side of the inverter body above the door panel, and an abutment plate is extended to the right from the clamping plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model uses a torsion spring to control the rotation of the door panel, so that the door panel can remain in a closed state when not subject to external force, thereby ensuring the sealing and safety of the frequency converter to a certain extent; at the same time, the upper and lower teeth are used together with the toothed disc to limit their own fastening through multiple resistances, and then only a limiting component needs to be connected to the toothed disc, so that the open door panel can be limited by the limiting component to maintain its open state without affecting the operation of the staff; the limiting component is a fan-shaped block that moves up and down under the action of a reset spring, so that the fan-shaped block can move outward when the door panel is opened, and then automatically move inward, and is located on the front side of the door panel, thereby limiting the door panel and improving the maintenance efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a rear view of the utility model;

[0014] Figure 3 It is an enlarged view of point b in the utility model;

[0015] Figure 4 This is an enlarged view of point a in the present invention;

[0016] Figure 5 It is a partial exploded view of the utility model.

[0017] Numbers in the figure: 1- inverter body, 2- hinge, 3- torsion spring, 4- door panel, 5- elastic mounting seat, 6- upper clamping tooth, 7- lower clamping tooth, 8- sliding hole, 9- sliding rod, 10- toothed disc, 11- connecting plate, 12- fan-shaped stop block, 13- guide rod, 14- reset spring, 15- limit block, 16- square bolt head, 17- eccentric lock handle, 18- handle, 19- clamping plate, 20- stop plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1

[0020] like Figures 1 to 5 The inverter shown in the figure is convenient for assembly, including an inverter body 1, hinges 2 are symmetrically arranged on the right side of the inverter body 1, and a door panel 4 is rotatably connected between the hinges 2 through a torsion spring 3, and an elastic mounting seat 5 is symmetrically arranged on the rear side of the inverter body 1, and an upper clamping tooth 6 and a lower clamping tooth 7 are extended from the bottom of the rear side of the elastic mounting seat 5, and a sliding hole 8 is opened on the rear side of the elastic mounting seat 5, and a sliding rod 9 is slidably arranged in the sliding hole 8, and a toothed disc 10 is rotatably arranged in the middle of the sliding rod 9, and a fan-shaped stopper 12 is movably installed on the front side of the toothed disc 10 through a connecting plate 11; the right side of the connecting plate 11 A fan-shaped stop block 12 is slidably installed on the side through a guide rod 13, and a return spring 14 is sleeved on the guide rod 13; a limit block 15 is fixedly set on the guide rod 13 near the fan-shaped stop block 12, and the return spring 14 is connected between the connecting plate 11 and the limit block 15; a square bolt head 16 is provided on the top of the slide rod 9, and an eccentric lock handle 17 is rotatably connected to the top of the square bolt head 16; a handle 18 is embedded on the right front side of the door panel 4; a clamping plate 19 is rotatably provided on the right side of the inverter body 1 above the door panel 4, and a stop plate 20 is extended to the right by the clamping plate 19.

[0021] The utility model adopts the torsion spring 3 to control the rotation of the door panel 4, so that the door panel 4 can remain in the closed state when not subjected to external force, thereby ensuring the sealing and safety of the frequency converter to a certain extent; at the same time, the upper latch teeth 6 and the lower latch teeth 7 are used together with the toothed disc 10 to limit their own fastening through multiple resistances, and then only a limiting component needs to be connected to the toothed disc 10, so that the opened door panel 4 can be limited by the limiting component to maintain its open state without affecting the operation of the staff; the limiting component is a fan-shaped stop block 12 that moves up and down under the action of the reset spring 14, so that the fan-shaped stop block 12 can move outward when the door panel 4 is opened, and then automatically move inward, and is located on the front side of the door panel 4, so as to limit the door panel 4 and improve the maintenance efficiency of the staff.

[0022] Example 2

[0023] like Figures 1 to 5A frequency converter that is easy to assemble is shown, including a frequency converter body 1, hinges 2 are symmetrically arranged on the right side of the frequency converter body 1, and a door panel 4 is rotatably connected between the hinges 2. When the door panel 4 is closed, it will protect the internal parts of the frequency converter. After opening, it can be used to install the internal parts of the frequency converter or for subsequent maintenance and other operations. It is known that the frequency converter needs to be sealed during operation to avoid damage to the frequency converter caused by damage to parts during operation, which will require higher cost maintenance later. Therefore, most frequency converters will directly use the torsion spring 3 as the rotation force of the door panel 4, so that the door panel 4 can be opened for maintenance, and in most cases, it can remain closed under the action of the torsion spring 3, without the need for manpower to check it all the time. A handle 18 is embedded on the right front side of the door panel 4. The handle 18 is an inward-hook type, and is used by the staff to pull the handle 18 to drive the door panel 4 to open outward for maintenance and installation. In addition, a card plate 19 is rotatably provided on the right side of the inverter body 1 and at a position above the door panel 4. The card plate 19 extends to the right and is provided with a stop plate 20, which extends downward, that is, the horizontal thickness of the stop plate 20 is lower than that of the card plate 19. When the door panel 4 is closed for the operation of the inverter body 1, the staff can rotate the card plate 19 downward, and then the card plate 19 and the stop plate 20 will both rotate downward to the outside of the door panel 4, and at this time the stop plate 20 will directly contact the door panel 4 to further limit the door panel 4.

[0024] This arrangement also causes the door panel 4 to automatically rotate inward and close under the action of the torsion spring 3 when no force is applied. Once the staff does not control and apply force to the door panel 4, the door panel 4 will automatically close, and the staff will need to open it again, which affects the efficiency of maintenance and parts assembly.

[0025] Example 3

[0026] like Figures 1 to 5 The inverter shown is easy to assemble, including an inverter body 1, and a door panel 4 is provided on the right side of the inverter body 1 through a torsion spring 3. The door panel 4 is used to close the inverter body 1 to protect the inverter body 1 from the influence of the external environment during operation and maintain normal operation. However, it is the setting of the torsion spring 3 that makes the door panel 4 automatically close when no force is applied, and it cannot remain open for a long time, which affects the efficiency of the staff in assembling and repairing the parts in the inverter body 1.

[0027] An elastic mounting seat 5 is symmetrically arranged on the rear side of the inverter body 1, which is made of some materials with high toughness and is specifically set as an elastic block with a hollow rear side; an upper clamping tooth 6 and a lower clamping tooth 7 are extended from the bottom of the rear side of the elastic mounting seat 5, and the teeth of both are facing inward; a sliding hole 8 is opened on the rear side of the elastic mounting seat 5, and the sliding hole 8 is also located between the upper clamping tooth 6 and the lower clamping tooth 7. A sliding rod 9 is slidingly arranged in the sliding hole 8, that is, the sliding rod 9 can move up and down in the sliding hole; a toothed disc 10 is arranged in the middle of the sliding rod 9, and the specific design of the toothed disc 10 is that a certain number of teeth are arranged on the upper and lower sides of the cylinder for cooperating with the upper clamping tooth 6 and the lower clamping tooth 7. When force is applied to the elastic mounting seat 5, the upper clamping tooth 6 and the lower clamping tooth 7 both move inward to clamp the toothed disc 10, and the tightening and limiting of the chuck is achieved through multiple resistances. Furthermore, when a connecting plate 11 is connected to the front side of the toothed disc 10 and a hole is opened on the front side of the connecting plate 11, a fan-shaped stop block 12 is movably installed inside. The two sides of the fan-shaped stop block 12 are of different sizes and are on the same horizontal line as the door panel 4. That is, when the door panel 4 is opened, the fan-shaped stop block 12 can be pushed to move outward, and when the door panel 4 is rotated to the rear side of the fan-shaped stop plate 20, the fan-shaped stop block 12 can be pushed to move inward to limit the opening state of the door panel 4, so that the staff can reach into the inverter body 1 for maintenance.

[0028] Example 4

[0029] Based on the content in Example 3, "when the elastic mounting seat 5 is subjected to force, the upper clamping teeth 6 and the lower clamping teeth 7 are moved inward to clamp the toothed disc 10, and the clamping disc is tightened and limited by multiple resistances." In a normal state, the elastic mounting seat 5 is not squeezed, and the upper clamping teeth 6 and the lower clamping teeth 7 are also opened, and no longer clamp the toothed disc 10; and when it is necessary to fix the toothed disc 10, that is, the fan-shaped block 12, a square bolt head 16 is also provided on the top of the slide bar 9, and the top of the square bolt head 16 is rotatably connected with an eccentric lock handle 17. It should be noted that the "eccentricity" here is actually the rotation center position of the eccentric lock handle 17 on the square bolt head 16. When the eccentric lock handle 17 rotates downward, the side that is biased to the center position will be rotated to contact the elastic mounting seat 5, and then the slide bar 9 will be lifted and moved upward, driving the lower clamping teeth 7 and the elastic mounting seat 5 to be biased upward in turn, until the upper clamping teeth 6 cooperate to clamp the toothed disc 10, so as to fix the position of the fan-shaped block 12. At the same time, the staff can also indirectly adjust the parallel angle of the fan-shaped stop block 12 by adjusting the angle of the toothed disc 10 and the connecting plate 11, so as to limit the door panel 4 opened at different angles, thereby realizing maintenance and assembly in various scenarios.

[0030] Considering that the door panel 4 will rotate inwards under the action of the two torsion springs 3 to complete the closing action; accordingly, the utility model also sets two for the above-mentioned limiting structures, aiming to achieve close limiting of the door panel 4, but the fan-shaped stopper 12 is movably installed in the connecting plate 11, and the fan-shaped stopper 12 located on the upper side can directly move downward under the influence of gravity to stop the upper part of the door panel 4, while the fan-shaped stopper 12 on the lower side cannot achieve automatic limiting. Therefore, a reset spring 14 is connected between the fan-shaped stopper 12 and the connecting plate 11, which is used to drive the fan-shaped stopper 12 to automatically reset inwards and synchronously limit the upper and lower sides of the door panel 4.

[0031] Specifically, a fan-shaped stopper 12 is slidably mounted on the right side of the connecting plate 11 through a guide rod 13, a reset spring 14 is sleeved on the guide rod 13, and a limit block 15 is fixedly arranged at the lower part of the guide rod 13, so that the reset spring 14 is connected between the connecting plate 11 and the limit block 15; and then when the door panel 4 is opened, the fan-shaped stopper 12 will be squeezed to move outward, at this time, the guide rod moves outward on the connecting plate 11, and the reset spring 14 is squeezed under the action of the limit block 15, and when the door panel 4 moves to no longer squeeze the fan-shaped stopper 12, the reset spring 14 will reset and drive the guide rod to move inward, and then drive the fan-shaped stopper 12 to move inward, so as to limit the door panel 4. In addition, the reset spring 14 can also play a role in holding the fan-shaped stopper 12 to maintain its state, reducing the fan-shaped stopper 12 driven by absolute force to move outward, and break away from the limit of the door panel 4, causing personal injury, damage to the inverter body 1 and other consequences.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A frequency converter that is easy to assemble, comprising a frequency converter body (1), hinges (2) are symmetrically arranged on the right side of the frequency converter body (1), and a door panel (4) is rotatably connected between the hinges (2) via a torsion spring (3), characterized in that: An elastic mounting seat (5) is symmetrically arranged on the rear side of the inverter body (1), and an upper latching tooth (6) and a lower latching tooth (7) are extended from the rear bottom of the elastic mounting seat (5). A sliding hole (8) is opened on the rear side of the elastic mounting seat (5), and a sliding rod (9) is slidably arranged in the sliding hole (8). A toothed disc (10) is rotatably arranged in the middle of the sliding rod (9), and a fan-shaped stop block (12) is movably arranged on the front side of the toothed disc (10) through a connecting plate (11).

2. A frequency converter that is easy to assemble according to claim 1, characterized in that: The sector-shaped stopper (12) is slidably mounted on the right side of the connecting plate (11) via a guide rod (13), and a return spring (14) is sleeved on the guide rod (13).

3. A frequency converter that is easy to assemble according to claim 2, characterized in that: A limit block (15) is fixedly arranged on the guide rod (13) at a position close to the fan-shaped stop block (12), and the return spring (14) is connected between the connecting plate (11) and the limit block (15).

4. The frequency converter that is easy to assemble according to claim 1, characterized in that: A square bolt head (16) is provided on the top of the slide rod (9), and an eccentric lock handle (17) is rotatably connected to the top of the square bolt head (16).

5. The frequency converter convenient for assembly according to claim 1, characterized in that: A handle (18) is embedded in the right front side of the door panel (4).

6. The frequency converter that is easy to assemble according to claim 1, characterized in that: A clamping plate (19) is rotatably provided on the right side of the frequency converter body (1) at a position above the door panel (4), and a stop plate (20) is provided on the clamping plate (19) extending to the right.

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