Valve mechanism of cabinet body

Abstract

The utility model provides a valve mechanism of a cabinet body, which belongs to the technical field of centrally installed switchgear and comprises a mounting plate, a valve baffle, driving connecting rods arranged on two sides of the valve baffle, supports arranged on two sides of the valve baffle and valve guide rods arranged on the mounting plate and matched with the supports. The valve baffle can drive the support to slide in the length direction of the valve guide rod, the valve guide rod comprises a main rod part and protruding parts arranged at the two ends of the main rod part, the main rod part and the protruding parts are integrally formed, the support comprises a bottom plate part, a left side plate part and a right side plate part, and the height of the protruding parts is larger than the thickness of the bottom plate part. One side of the protruding part of the valve guide rod abuts against the mounting plate and forms a sliding way with the mounting plate, and the bottom plate part is arranged on the sliding way in a sliding mode. In the utility model, the original valve guide rod and the two supporting blocks are combined into a whole and are directly and integrally formed, so that the mechanism structure is simplified, the assembly difficulty is reduced, the assembly efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of center cabinets, in particular to a valve mechanism of a cabinet. Background Art

[0002] The center cabinet is called metal armored center removable switchgear. It is a high-voltage power distribution device with a maximum working voltage of 3.6 / 7.2 / 12kV. It is an indoor complete power distribution device for three-phase AC 50Hz single busbar segmentation system or double busbar segmentation system. It is used to receive and distribute 3.6-12kV network power, and to control, protect, monitor and measure the power circuit. It is mainly used for power plants, power transmission of small and medium-sized generators, power reception and transmission of secondary substations of power systems, power distribution of industrial and mining enterprises and institutions, and starting of large high-voltage motors. In the current metal armored center removable switchgear, when the circuit breaker trolley is opened and moved out of the cabinet, the static contact on the incoming line side may be energized with high voltage. Therefore, a valve baffle is set in the cabinet to shield the static contact to prevent personal safety accidents.

[0003] The patent with publication number CN217281844U previously applied by the applicant discloses a valve guide mechanism, including a mounting plate, two valve baffles, and two driving connecting rods respectively arranged on each valve baffle, wherein the mounting plate is respectively provided with two sets of guide components matched with the two valve baffles, wherein the guide components include two brackets arranged at both ends of the valve baffle, and two valve guide rods respectively arranged on the mounting plate and matched with the two brackets, wherein the valve baffle can drive the two brackets to slide axially along the two valve guide rods, and the two brackets can swing freely on the two valve guide rods, wherein the mounting plate is respectively provided with support blocks at both ends corresponding to the valve guide rods, and the two ends of the valve guide rods are connected to the support blocks. The valve guide rods are fixed on the support blocks of the mounting plate, thereby facilitating the assembly of the valve guide rods and the mounting plate, but such a plurality of parts are relatively complicated during assembly, which reduces the assembly efficiency of the central cabinet. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a valve mechanism for a cabinet.

[0005] The technical solution adopted by the utility model is as follows: the application provides a valve mechanism of a cabinet, including a mounting plate, a valve baffle, a driving connecting rod arranged on both sides of the valve baffle, a bracket arranged on both sides of the valve baffle, and a valve guide rod arranged on the mounting plate and matched with the bracket, the valve baffle can drive the bracket to slide along the length direction of the valve guide rod, the valve guide rod includes a main rod portion and a protrusion arranged at both ends of the main rod portion, the main rod portion and the protrusion are integrally formed, the bracket includes a bottom plate portion, a left plate portion and a right plate portion, the height of the protrusion is greater than the thickness of the bottom plate portion, one side of the protrusion of the valve guide rod abuts against the mounting plate and forms a slideway with it, and the bottom plate portion is slidably arranged on the slideway.

[0006] In some embodiments, the valve guide rod is a plate material bent into an integrated structure.

[0007] In some embodiments, first through holes are provided at both ends of the valve guide rod, and first connecting holes are provided on the mounting plate corresponding to the first through holes. The valve guide rod is fixed to the mounting plate by bolts passing through the first through holes and connecting with the first connecting holes.

[0008] In some embodiments, the thickness of the plate material used for the valve guide rod is 1.5 mm-3 mm, and the length of the protrusion is not less than 8 mm.

[0009] In some embodiments, the bottom plate portion, the left plate portion and the right plate portion form a guide groove, the valve guide rod passes through the guide groove, and the distance between the left plate portion and the right plate portion is greater than the width of the valve guide rod.

[0010] In some embodiments, the right side plate portion is extended toward the valve baffle with a fixed plate portion, the fixed plate portion is provided with at least two second through holes, and the valve baffle is provided with a third through hole corresponding to the second through holes.

[0011] In some embodiments, two sides of the valve baffle are bent to form connecting plate portions, and the driving connecting rod is hinged to the connecting plate portions.

[0012] In some embodiments, two transmission assemblies are also included, the number of the valve baffles is two, namely an upper baffle and a lower baffle, the transmission assembly includes a fixed seat, an upper crank arm, a lower crank arm and a torsion spring, the drive connecting rod includes an upper connecting rod hinged to the upper baffle and a lower connecting rod hinged to the lower baffle, a fixed shaft is provided on the fixed seat, one end of the upper crank arm is hinged to the lower connecting rod, and the other end is hinged to the fixed shaft, one end of the lower crank arm is hinged to the upper connecting rod, and the other end is hinged to the fixed shaft, the torsion spring is sleeved on the fixed shaft and located between the upper crank arm and the lower crank arm, under the action of the torsion spring, the upper baffle and the lower baffle are both in a closed position that blocks the static contact.

[0013] In some embodiments, a drive shaft for connecting to a drive mechanism is disposed at one end of the upper crank arm and the lower crank arm close to the fixed shaft.

[0014] The beneficial effects of the utility model are as follows: in the utility model, the original valve guide rod is combined with two support blocks into one body and is directly formed into one body, which simplifies the mechanism structure, reduces the difficulty of assembly, improves the efficiency of assembly, and saves the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0016] Figure 1 It is a schematic diagram of a valve mechanism of a cabinet in the utility model;

[0017] Figure 2 It is a schematic diagram of the valve guide rod and the bracket in the utility model;

[0018] Figure 3 It is a schematic diagram of the bracket in the utility model;

[0019] Figure 4 It is a partial schematic diagram of a valve mechanism of a cabinet in the utility model;

[0020] Figure 5 It is a schematic diagram of the transmission component in the utility model. DETAILED DESCRIPTION

[0021] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0022] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0024] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; 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 an internal connection between two devices, elements or components.

[0025] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0027] Embodiment 1:

[0028] like Figures 1 to 5As shown, this embodiment provides a valve mechanism of a cabinet, which is mainly used in a central cabinet. The valve mechanism includes a mounting plate 1, a valve baffle 2, a driving connecting rod 3 arranged on both sides of the valve baffle 2, a bracket 4 arranged on both sides of the valve baffle 2, and a valve guide rod 5 arranged on the mounting plate 1 and matched with the bracket 4. The valve baffle 2 can drive the bracket 4 to slide along the length direction of the valve guide rod 5. The valve guide rod 5 includes a main rod portion 50 and protrusions 51 arranged at both ends of the main rod portion 50. The main rod The part 50 and the raised part 51 are integrally formed. Specifically, the valve guide rod 5 is a plate bent into an integral structure, the production process is simple, and it is conducive to reducing production costs. The bracket 4 includes a bottom plate part 40, a left plate part 41 and a right plate part 42. The bracket 4 is also a plate bent into an integral structure. The height of the raised part 51 is greater than the thickness of the bottom plate part 40. One side of the raised part 51 of the valve guide rod 5 abuts against the mounting plate 1 and forms a slideway 6 therewith. The bottom plate part 40 is slidably arranged on the slideway 6. Through this arrangement, compared with the original two ends of the valve guide rod being raised by support blocks to allow the bracket 4 to slide smoothly, in this embodiment, the valve guide rod is combined with two support blocks as a whole and is directly integrally formed, which simplifies the mechanism structure, reduces the difficulty of assembly, improves the efficiency of assembly, and saves manufacturing costs.

[0029] In addition, compared with the traditional sliding structure of the slide rail and the slider, the sliding structure is simpler and has low cost.

[0030] In the disclosed embodiment, first through holes 52 are provided at both ends of the valve guide rod 5, and a first connecting hole is provided on the mounting plate 1 corresponding to the first through hole 52. The valve guide rod 5 is fixed to the mounting plate 1 by bolts passing through the first through hole 52 and connecting with the first connecting hole. The first connecting hole is a threaded connection hole, or a nut can be welded at the first connecting hole. In this way, the installation of the valve guide rod 5 is more stable, and the bolt connection method is also convenient for later maintenance and replacement, which simplifies the assembly process and further improves the production efficiency and the service life of the product.

[0031] Optionally, the thickness of the plate used for the valve guide rod 5 is 1.5mm-3mm, which ensures the strength and stability of the structure and is suitable for bearing the force during operation. Secondly, the length of the protrusion 51 is not less than 8mm, providing sufficient contact area to form a stable slideway 6 with the mounting plate 1, further ensuring the smooth sliding and precise guidance of the valve baffle 2.

[0032] In the disclosed embodiment, the bottom plate portion 40, the left plate portion 41 and the right plate portion 42 form a guide groove 43, and the valve guide rod 5 passes through the guide groove 43. The distance between the left plate portion 41 and the right plate portion 42 is greater than the width of the valve guide rod 5, ensuring the free sliding and swinging of the guide rod in the groove, thereby avoiding the valve guide rod 5 from getting stuck during movement, and enhancing the smoothness and reliability of the overall mechanical structure.

[0033] Optionally, the right side plate portion 42 has a fixed plate portion 44 extending toward the valve baffle 2, and at least two second through holes 440 are provided on the fixed plate portion 44. A third through hole 20 is provided on the valve baffle 2 corresponding to the second through holes 440. The valve baffle 2 is fixed to the fixed plate portion 44 by bolts and nuts to ensure that the valve baffle 2 is firmly installed.

[0034] In the disclosed embodiment, both sides of the valve baffle 2 are bent to form connecting plate portions 21, and the driving connecting rod 3 is hinged to the connecting plate portions 21, which simplifies the structure. The valve baffle 2 is also a plate material bent into an integrated structure.

[0035] Furthermore, it also includes two transmission assemblies 7, the valve baffle 2 is two, an upper baffle and a lower baffle, and the coordinated movement of the upper baffle and the lower baffle is achieved through the two transmission assemblies. The transmission assembly 7 includes a fixed seat 70, an upper crank arm 71, a lower crank arm 72 and a torsion spring 73. The driving connecting rod 3 includes an upper connecting rod 30 hinged to the upper baffle and a lower connecting rod 31 hinged to the lower baffle. The fixed seat 70 is provided with a fixed shaft 700. One end of the upper crank arm 71 is connected to the lower connecting rod 31. 31, and the other end is hinged to the fixed shaft 700. One end of the lower crank arm 72 is hinged to the upper connecting rod 30, and the other end is hinged to the fixed shaft 700. The torsion spring 73 is sleeved on the fixed shaft 700 and is located between the upper crank arm 71 and the lower crank arm 72. Under the action of the torsion spring 73, the upper baffle and the lower baffle are both in the closed position of shielding the static contact, ensuring that the baffle can automatically return to the closed state when there is no external driving force, thereby enhancing the safety and reliability of the device. Secondly, the upper crank arm 71 and the lower crank arm 72 are each provided with a drive shaft 74 for connecting to the drive mechanism at one end close to the fixed shaft 700, so that the drive mechanism can directly apply force through the drive shaft to drive the crank arm to move, and the upper baffle and the lower baffle can be driven and controlled separately, so that they slide along the corresponding slide 6 to achieve shielding the static contact or exposing the static contact.

[0036] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, those skilled in the art will appreciate that the requirements of this application encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0037] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0038] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. A valve mechanism of a cabinet, comprising a mounting plate (1), a valve baffle (2), a driving connecting rod (3) arranged on both sides of the valve baffle (2), a bracket (4) arranged on both sides of the valve baffle (2), and a valve guide rod (5) arranged on the mounting plate (1) and matched with the bracket (4), wherein the valve baffle (2) can drive the bracket (4) to slide along the length direction of the valve guide rod (5), characterized in that: The valve guide rod (5) comprises a main rod portion (50) and protrusions (51) arranged at both ends of the main rod portion (50), the main rod portion (50) and the protrusions (51) are integrally formed, the bracket (4) comprises a bottom plate portion (40), a left plate portion (41) and a right plate portion (42), the height of the protrusions (51) is greater than the thickness of the bottom plate portion (40), one side of the protrusions (51) of the valve guide rod (5) abuts against the mounting plate (1) and forms a slideway (6) therewith, and the bottom plate portion (40) is slidably arranged on the slideway (6).

2. The valve mechanism of a cabinet according to claim 1, characterized in that: The valve guide rod (5) is a plate material bent into an integrated structure.

3. The valve mechanism of a cabinet according to claim 1, characterized in that: The valve guide rod (5) is provided with first through holes (52) at both ends, and the mounting plate (1) is provided with first connecting holes corresponding to the first through holes (52). The valve guide rod (5) is fixed to the mounting plate (1) by bolts passing through the first through holes (52) and connecting with the first connecting holes.

4. The valve mechanism of a cabinet according to claim 2, characterized in that: The thickness of the plate material used for the valve guide rod (5) is 1.5 mm to 3 mm, and the length of the protrusion (51) is not less than 8 mm.

5. The valve mechanism of a cabinet according to claim 1, characterized in that: The bottom plate portion (40), the left plate portion (41) and the right plate portion (42) form a guide groove (43), the valve guide rod (5) passes through the guide groove (43), and the distance between the left plate portion (41) and the right plate portion (42) is greater than the width of the valve guide rod (5).

6. The valve mechanism of a cabinet according to claim 1, characterized in that: The right side plate portion (42) is provided with a fixed plate portion (44) extending towards the valve baffle (2); at least two second through holes (440) are provided on the fixed plate portion (44); and a third through hole (20) is provided on the valve baffle (2) corresponding to the second through holes (440).

7. The door mechanism of a cabinet according to claim 1, characterized in that: Both sides of the valve baffle (2) are bent to form connecting plate portions (21), and the driving connecting rod (3) is hinged to the connecting plate portions (21).

8. The door mechanism of a cabinet according to claim 1, characterized in that: The invention also comprises two transmission assemblies (7), the valve baffles (2) are two, an upper baffle and a lower baffle, the transmission assembly (7) comprises a fixing seat (70), an upper crank arm (71), a lower crank arm (72) and a torsion spring (73), the driving connecting rod (3) comprises an upper connecting rod (30) hinged to the upper baffle and a lower connecting rod (31) hinged to the lower baffle, the fixing seat (70) is provided with a fixing shaft (700), the upper crank arm (71 ... One end of the lower crank arm (71) is hinged to the lower connecting rod (31), and the other end is hinged to the fixed shaft (700); one end of the lower crank arm (72) is hinged to the upper connecting rod (30), and the other end is hinged to the fixed shaft (700); the torsion spring (73) is sleeved on the fixed shaft (700) and is located between the upper crank arm (71) and the lower crank arm (72); under the action of the torsion spring (73), the upper baffle plate and the lower baffle plate are both in a closed position for shielding the static contact.

9. The door mechanism of a cabinet according to claim 8, characterized in that: One end of the upper crank arm (71) and the lower crank arm (72) close to the fixed shaft (700) is provided with a driving shaft (74) for connecting to a driving mechanism.

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