Electrical element mounting rack in power distribution cabinet and power distribution cabinet

Abstract

The utility model discloses an electrical element mounting rack in a power distribution cabinet and the power distribution cabinet, and relates to the technical field of power distribution cabinets. An electrical element mounting rack in a power distribution cabinet comprises a horizontal cross rod, two mounting blocks and a plurality of vertical racks arranged in the axial direction of the cross rod, and the two mounting blocks are connected to the two ends of the cross rod respectively. The vertical frame comprises a vertical frame base connected with the cross rod, a lug plate distance adjusting device connected with the vertical frame base and two lug plates connected to the upper side and the lower side of the lug plate distance adjusting device, lug plate bolt holes are formed in the lug plates, and the lug plate distance adjusting device is used for adjusting the distance between the two lug plates in the vertical direction. The electrical element mounting rack in the power distribution cabinet is used for being arranged in the power distribution cabinet to mount electrical elements, electrical elements of different height specifications can be flexibly mounted on the same cross rod, and the problem that only the electrical elements of the same specification can be mounted on each group of cross rod assemblies in a traditional electrical element mounting rack is solved; and the universality and the flexibility of the electrical element mounting rack are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet electrical component mounting rack and a power distribution cabinet. BACKGROUND

[0002] A power distribution cabinet is a device for power distribution, control and protection in a power system. With the continuous advancement of intelligentization and compact design of power distribution networks, various specifications of electrical components such as circuit breakers, contactors, transformers and terminal strips need to be integrated in the power distribution cabinet. In order to orderly and safely fix these electrical components in the closed cabinet, an electrical component mounting rack for mounting these electrical components needs to be provided in the cabinet. The structure of the electrical component mounting rack directly determines the space utilization and the operational reliability of the electrical components in the cabinet, and is a key link in the design of the power distribution cabinet.

[0003] At present, the commonly used electrical component mounting rack mainly comprises two vertical rods fixed along the height direction of the cabinet and a plurality of groups of horizontal rod assemblies arranged along the length direction of the vertical rods. Each group of horizontal rod assemblies comprises two horizontal rods arranged in parallel and spaced apart, and a plurality of bolt holes are arranged along the length direction of each horizontal rod. During installation, the upper and lower mounting ears of the electrical component are fastened and connected to the two horizontal rods of the same group through bolts, so that the electrical component is fixed in the cabinet in a suspended manner. This electrical component mounting rack can adjust the installation height of the electrical components by adjusting the position of the horizontal rods on the vertical rods.

[0004] However, when the positions of the two horizontal rods in each group of horizontal rod assemblies are determined, each group of horizontal rod assemblies can only install electrical components of a single height that matches the spacing between the two horizontal rods. When different height specifications of electrical components need to be mixed and installed in the power distribution cabinet, some electrical components may be too high or too low to be installed on the same group of horizontal rod assemblies, and new horizontal rod assemblies or blank areas need to be added, resulting in waste of cabinet space, low versatility of the electrical component mounting rack, and inconvenience for later expansion, modification and maintenance of the cabinet, which seriously restricts the versatility and practicality of the power distribution cabinet. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide a power distribution cabinet electrical component mounting rack and a power distribution cabinet, and solve the problem of low versatility of the existing electrical component mounting rack.

[0006] The technical scheme adopted by the application to solve the technical problem is:

[0007] In a first aspect, a mounting rack for electrical components in a power distribution cabinet is provided, comprising a horizontal crossbar, two mounting blocks and a plurality of vertical supports arranged along the axial direction of the crossbar. The two mounting blocks are respectively connected to the two ends of the crossbar and used to connect with the two opposite side walls of the cabinet body. The vertical support comprises a vertical support seat connected with the crossbar, an ear plate spacing adjustment device connected with the vertical support seat, two ear plates connected on the upper and lower sides of the ear plate spacing adjustment device, and ear plate bolt holes provided on the ear plates. The ear plate spacing adjustment device is used to adjust the distance between the two ear plates in the vertical direction.

[0008] Further, the ear plate spacing adjustment device comprises a vertical fixed rod connected with the vertical support seat, two vertical movable rods slidingly connected with the fixed rod along the axial direction of the fixed rod, and a movable rod driving member provided on the fixed rod and connected with the two movable rods. The movable rod driving member is used to drive the two movable rods to move towards or away from each other. The two movable rods are respectively connected with the two ear plates.

[0009] Further, the movable rod driving member comprises a driving sleeve vertically arranged and rotationally connected with the fixed rod about its own axis, and two lead screws respectively threadedly connected with the two ends of the inner cavity of the driving sleeve. The thread rotation directions of the two lead screws are opposite. The two movable rods are respectively connected with the two lead screws.

[0010] Further, the fixed rod comprises two sections arranged in the vertical direction. Each section of the fixed rod is provided with a through guiding hole. The two movable rods are respectively slidingly fitted in the two guiding holes and provided with anti-rotation structures between the movable rods and the guiding holes. The driving sleeve is rotationally mounted between the two sections of the fixed rod and its two ends are respectively provided in the two guiding holes.

[0011] Further, the vertical support seat comprises a seat ring sleeved on the crossbar and sliding along the axial direction of the crossbar. The seat ring is provided with anti-rotation structures between the seat ring and the crossbar. The seat ring is provided with a locking device for locking the seat ring on the crossbar. The ear plate spacing adjustment device is arranged on the front side of the crossbar and connected with the seat ring.

[0012] Further, the front side of the crossbar is provided with a plurality of lock holes along the axial direction. The locking device comprises spring lock pins provided on the seat ring and used for plug-in cooperation with the lock holes.

[0013] Further, along the axial direction of the crossbar, a distance is provided between the end of the crossbar and the corresponding mounting block. The distance is greater than the size of the vertical support in this direction. The rear side of the crossbar is connected with the mounting block through a connecting block. The seat ring is provided with an avoidance slot for avoiding the connecting block during sliding along the crossbar.

[0014] Further, an inner surface of the side wall of the cabinet body is provided with a sliding groove extending in a horizontal direction, a front end of the sliding groove extends to a front side of the side wall of the cabinet body and is in an open structure, the mounting block is slidingly fitted in the sliding groove, and the mounting block is provided with a positioning device for positioning the mounting block in the sliding groove.

[0015] Further, the mounting block is provided with an elongated mounting cavity extending in a sliding direction of the mounting block, one side of the mounting block facing the cross rod is provided with a pressing opening in communication with a front end of the mounting cavity, and the other side of the mounting block away from the cross rod is provided with a positioning opening in communication with a rear end of the mounting cavity.

[0016] The positioning device comprises a pressing rod arranged in the mounting cavity, a middle portion of the pressing rod is rotationally connected to the mounting block through a vertical rotating shaft, a front end of the pressing rod is opposite to the pressing opening and is provided with an elastic member between an inner wall of the mounting cavity away from the pressing opening, and a rear end of the pressing rod is opposite to the positioning opening and is connected to a positioning block on a side of the pressing rod facing the positioning opening, and the sliding groove is provided with a positioning groove for positioning cooperation with the positioning block.

[0017] In a second aspect, a power distribution cabinet is provided, comprising a cabinet body, a cabinet door hingedly connected to the cabinet body, and an electrical element mounting rack arranged in the cabinet body, and the electrical element mounting rack is the electrical element mounting rack in the power distribution cabinet provided in the first aspect.

[0018] The power distribution cabinet provided in the present application has the following beneficial effects:

[0019] The electrical element mounting rack in the power distribution cabinet provided in the present application is arranged in the power distribution cabinet to mount electrical elements, the mounting blocks are connected to two ends of the cross rod respectively, and the mounting blocks are connected to two opposite side walls of the cabinet body, so that the cross rod is stably mounted in the power distribution cabinet, a plurality of vertical supports are arranged along an axial direction of the cross rod, each vertical support comprises a vertical support seat connected to the cross rod, an ear plate spacing adjustment device connected to the vertical support seat, and two ear plates connected to upper and lower sides of the ear plate spacing adjustment device, and the electrical elements can be mounted on the upper and lower ear plates of a single vertical support or across the ear plates of two vertical supports, the spacing between the upper and lower ear plates is adjusted in a vertical direction by the ear plate spacing adjustment device, and different height specifications of electrical elements can be mounted on the vertical support.

[0020] Compared with the prior art, the electrical element mounting rack in the power distribution cabinet provided in the present application can flexibly mount electrical elements of different height specifications on the same cross rod, solves the problem that each group of cross rod assemblies in the traditional electrical element mounting rack can only mount electrical elements of the same specification, improves the versatility and flexibility of the electrical element mounting rack, and effectively reduces the waste of internal space of the power distribution cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is a structural schematic diagram of an existing power distribution cabinet;

[0023] Figure 2 is a structural schematic diagram of a power distribution cabinet provided by the embodiments of the present application;

[0024] Figure 3 is a state diagram of installing the electrical element mounting member into the cabinet body;

[0025] Figure 4 is a structural schematic diagram of an electrical element mounting rack provided by the embodiments of the present application;

[0026] Figure 5 is a structural schematic diagram of another perspective of the electrical element mounting rack provided by the embodiments of the present application;

[0027] Figure 6 is a partial sectional view of the electrical element mounting rack provided by the embodiments of the present application;

[0028] Figure 7 is Figure 6 an enlarged view of A part in FIG. 1;

[0029] Figure 8 is another partial sectional view of the electrical element mounting rack provided by the embodiments of the present application;

[0030] Figure 9 is Figure 8 an enlarged view of B part in FIG. 1;

[0031] Figure 10 is Figure 8 an enlarged view of C part in FIG. 1.

[0032] Reference signs:

[0033] 1-first power distribution cabinet; 10-first cabinet body; 11-first cabinet door; 12-first electrical element mounting rack; 121-vertical rod; 122-cross rod assembly; 1221-first cross rod; 1222-bolt hole; 13-electrical element;

[0034] 2-power distribution cabinet; 21-cabinet body; 211-sliding groove; 2111-positioning groove; 22-cabinet door; 23-electrical element mounting rack;

[0035] 4-cross rod; 41-lock hole;

[0036] 5-mounting block; 51-mounting cavity; 52-pressing opening; 53-positioning opening;

[0037] 6-vertical frame;

[0038] 61-vertical frame seat; 611-seat ring; 6111-avoidance groove; 6112-groove; 612-locking device; 6121-latch; 6122-baffle; 6123-spring; 6124-limiting handle; 613-seat plate;

[0039] 62-ear plate spacing adjustment device; 621-fixed rod; 6211-guide hole; 622-moving rod; 623-moving rod driving member; 6231-driving sleeve; 6232-screw rod; 6233-operation space; 6234-knob;

[0040] 63-ear plate; 631-ear plate bolt hole;

[0041] 7-distance; 8-connecting block;

[0042] 9-positioning device; 91-pressing rod; 92-vertical rotating shaft; 93-elastic member; 94-positioning block. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the description of the present application, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the above orientation description can be flexibly set in the process of actual application, as long as the relative positional relationship shown in the drawings is met.

[0045] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] Referring to Figure 1 The prior art provides a first power distribution cabinet 1, comprising a first cabinet body 10, a first cabinet door 11 hinged on the front side of the first cabinet body 10, and a first electrical element mounting rack 12 mounted in the first cabinet body 10. The first cabinet body 10 has a receiving cavity and an opening communicating with the receiving cavity, and the opening on the front side of the first cabinet body 10 can be opened and closed by rotating the first cabinet door 11. The first electrical element mounting rack 12 comprises two vertical rods 121 and a plurality of groups of horizontal rod assemblies 122. The two vertical rods 121 are vertically arranged and fixed in the receiving cavity of the first cabinet body 10, and the plurality of groups of horizontal rod assemblies 122 are arranged in the vertical direction. Each group of horizontal rod assemblies 122 comprises two first horizontal rods 1221 arranged in parallel and spaced apart in the vertical direction, and the two ends of each first horizontal rod 1221 are fixedly connected to the two vertical rods 121 by bolts. A plurality of bolt holes 1222 are arranged on each first horizontal rod 1221 along the length direction thereof, and the bolt holes 1222 are through holes arranged horizontally through the first horizontal rod 1221. During installation, the upper and lower mounting ears of the electrical element 13 are fastened and connected to the two first horizontal rods 1221 in the same group of horizontal rod assemblies 122 by bolts, so that the electrical element 13 is fixedly suspended in the first cabinet body 10.

[0047] Referring to Figure 1 This first electrical element mounting rack 12 can adjust the installation height of the electrical element 13 by adjusting the position of each group of horizontal rod assemblies 122 on the vertical rod 121, and can also adjust the distance between the two first horizontal rods 1221 in each group of horizontal rod assemblies 122 to meet the installation requirements of electrical elements 13 of different heights. However, when the positions of the two first horizontal rods 1221 in each group of horizontal rod assemblies 122 are determined, each group of horizontal rod assemblies 122 can only install a single height of electrical element 13 with a hole distance matching the distance between the two first horizontal rods 1221.

[0048] For example, Figure 1The center distance between the bolt holes 1222 of the two first cross bars 1221 in the first group of cross bar assemblies 122 is L1, thus only electrical elements 13 with a hole distance of L1 on the upper and lower mounting ears can be mounted on the first group of cross bar assemblies 122, and electrical elements 13 with other hole distances cannot be mounted; the center distance between the bolt holes 1222 of the two first cross bars 1221 in the second group of cross bar assemblies 122 is L2, thus only electrical elements 13 with a hole distance of L2 on the upper and lower mounting ears can be mounted on the second group of cross bar assemblies 122, and electrical elements 13 with other hole distances cannot be mounted.

[0049] Therefore, when different height specifications of electrical elements 13 need to be mixedly installed in the first power distribution cabinet 1, some electrical elements 13 cannot be installed on the same group of cross bar assemblies 122 due to excessive height or excessive height, and only new cross bar assemblies 122 or reserved blank areas can be added, which causes waste of cabinet space, makes the universality of the first electrical element mounting frame 12 lower, and brings inconvenience to the later expansion, reconstruction and maintenance of the cabinet, and seriously restricts the universality and practicality of the first power distribution cabinet 1.

[0050] Based on this, referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 The electrical element mounting frame 23 in the power distribution cabinet provided in the embodiments of the present application comprises a horizontal cross bar 4, two mounting blocks 5 and a plurality of vertical frames 6 arranged along the axial direction of the cross bar 4. The two mounting blocks 5 are respectively connected to the two ends of the cross bar 4 and are used to be connected with the two opposite side walls of the cabinet body 21. The vertical frame 6 comprises a vertical frame seat 61 connected with the cross bar 4, an ear plate spacing adjusting device 62 connected with the vertical frame seat 61, two ear plates 63 connected on the upper and lower sides of the ear plate spacing adjusting device 62, and ear plate bolt holes 631 arranged on the ear plates 63. The ear plate spacing adjusting device 62 is used to adjust the distance between the two ear plates 63 in the vertical direction.

[0051] The power distribution cabinet electrical element mounting rack provided by the embodiment of the present application is used for installing electrical elements in the power distribution cabinet 2. The horizontal rod 4 is stably installed in the power distribution cabinet 2 by connecting the two ends of the horizontal rod 4 with the mounting blocks 5 respectively and connecting the two mounting blocks 5 with the two opposite side walls of the cabinet body 21. A plurality of vertical racks 6 are arranged along the axial direction of the horizontal rod 4, and the electrical elements can be installed on a single vertical rack 6 or across two adjacent vertical racks 6 according to the size of the electrical elements along the axial direction of the horizontal rod 4. Each vertical rack 6 comprises a vertical rack seat 61 connected with the horizontal rod 4, an ear plate spacing adjusting device 62 connected with the vertical rack seat 61, and two ear plates 63 connected on the upper and lower sides of the ear plate spacing adjusting device 62, and each ear plate 63 is provided with an ear plate bolt hole 631. When the electrical element is installed on a single vertical rack 6, the upper and lower ends of the electrical element are fixed by cooperating with the ear plate bolt holes 631 on the two ear plates 63 through bolts and nuts respectively. When the electrical element is installed on two vertical racks 6, the four corners of the electrical element are fixed by cooperating with the ear plate bolt holes 631 on the four ear plates 63 through bolts and nuts respectively. The distance between the upper and lower ear plate bolt holes 631 is adjusted by adjusting the distance between the upper and lower ear plates 63 in the vertical direction through the ear plate spacing adjusting device 62, so that in actual use, electrical elements of multiple height specifications can be installed on each vertical rack 6 to adapt to the installation of electrical elements of different sizes.

[0052] Compared with the prior art, the power distribution cabinet electrical element mounting rack of the present application can flexibly install electrical elements of different height specifications on the same horizontal rod 4, solves the problem that each group of horizontal rod components in the traditional electrical element mounting rack can only install electrical elements of the same specification, improves the versatility and flexibility of the electrical element mounting rack, and effectively reduces the waste of internal space of the power distribution cabinet 2.

[0053] The ear plate spacing adjusting device 62 is not only used for connecting the two ear plates 63 arranged in the vertical direction together with the vertical rack seat 61, but also used for adjusting the distance between the two ear plates 63 in the vertical direction. For example, the ear plate spacing adjusting device 62 can comprise two vertically arranged screw rods, one end of each screw rod is fixedly connected with the two ear plates 63 respectively, the upper and lower ends of the vertical rack seat 61 are respectively provided with vertically arranged internal screw holes, and the other end of each screw rod is threadedly connected in the two internal screw holes respectively. During use, one or both screw rods can be rotated to drive the ear plates 63 connected therewith to rise and fall, so as to adjust the distance between the two ear plates 63 in the vertical direction.

[0054] In some embodiments, referring to Figure 4The ear plate spacing adjusting device 62 comprises a vertical fixed rod 621 connected with the vertical frame base 61, two vertical movable rods 622 slidably connected with the fixed rod 621 along the axial direction of the fixed rod 621, a movable rod driving member 623 arranged on the fixed rod 621 and connected with the two movable rods 622, and the movable rod driving member 623 is used for driving the two movable rods 622 to approach or move away from each other, and the two movable rods 622 are respectively connected with the two ear plates 63.

[0055] In use, by driving the two movable rods 622 to approach or move away from each other through the movable rod driving member 623, the two ear plates 63 can be driven to approach or move away from each other through the two movable rods 622, so as to realize the adjustment of the distance between the two ear plates 63 in the vertical direction. Correspondingly, by slidably connecting the movable rod 622 with the fixed rod 621, the movable rod 622 can be kept stable during sliding; by simultaneously driving the two movable rods 622 to approach or move away from each other through the movable rod driving member 623, the distance adjustment between the two ear plates 63 can be completed at one time, thereby improving the adjustment efficiency.

[0056] The movable rod driving member 623 is used for driving the two movable rods 622 to approach or move away from each other. For example, the movable rod driving member 623 can comprise a driving rod vertically arranged between the two movable rods 622 and rotationally connected with the fixed rod 621, the two ends of the driving rod are respectively provided with outer thread segments with opposite rotation directions, and the opposite ends of the two movable rods 622 are respectively provided with inner thread holes. In use, since the outer thread segments at the two ends of the driving rod have opposite rotation directions, the two movable rods 622 can be driven to approach or move away from each other by only rotating the driving rod in the forward direction or the reverse direction.

[0057] In some embodiments, referring to Figure 6 , Figure 7 The movable rod driving member 623 comprises a driving sleeve 6231 vertically arranged and rotationally connected with the fixed rod 621 about the axis thereof, two lead screws 6232 respectively threadedly connected with the two ends of the inner cavity of the driving sleeve 6231, the thread directions of the two lead screws 6232 are opposite, and the two movable rods 622 are respectively connected with the two lead screws 6232. In use, by only rotating the driving sleeve 6231 in the forward direction or the reverse direction, the two lead screws 6232 can be driven to approach or move away from each other, and the two movable rods 622 are driven to approach or move away from each other by the two lead screws 6232.

[0058] The movable rod 622 can be slidingly installed outside the fixed rod 621 through a sliding rail sliding block structure or a sliding rail sliding groove structure. This structure not only guides the sliding of the movable rod 622, so that the movable rod 622 remains stable during the sliding process, but also avoids the rotation of the movable rod 622 during the sliding process. The driving sleeve 6231 can be installed outside the fixed rod 621 through a bearing structure, so that the driving sleeve 6231 can rotate around its axis, but cannot move axially.

[0059] In some embodiments, referring to Figure 6 、 Figure 7 The fixed rod 621 includes two sections spaced apart in the vertical direction, each section of the fixed rod 621 is provided with a through-hole 6211, the two movable rods 622 are slidingly fitted in the two through-holes 6211 respectively, and an anti-rotation structure is arranged between the movable rod 622 and the through-hole 6211. The driving sleeve 6231 is rotatably installed between the two sections of the fixed rod 621, and the two ends of the driving sleeve 6231 are arranged in the two through-holes 6211 respectively.

[0060] The cross-sectional shape of the through-hole 6211 and the movable rod 622 can be a non-rotational shape such as a triangle, a rectangle, a square, an arc, etc. The anti-rotation structure includes the inner surface of the through-hole 6211 and the outer surface of the movable rod 622. After the movable rod 622 is inserted and fitted in the through-hole 6211, under the cooperation of the inner surface of the through-hole 6211 and the outer surface of the movable rod 622, the movable rod 622 can only slide in the through-hole 6211, but cannot rotate in the through-hole 6211.

[0061] The cross-sectional shape of the through-hole 6211 and the movable rod 622 can also be a circular shape. The anti-rotation structure includes a positioning sliding groove arranged on the inner surface of the through-hole 6211 and extending axially, and a positioning sliding block arranged on the movable rod 622 and slidingly fitted in the positioning sliding groove. After the movable rod 622 is inserted and fitted in the through-hole 6211 and the positioning sliding block is slidingly fitted in the positioning sliding groove, the movable rod 622 can only slide in the through-hole 6211, but cannot rotate in the through-hole 6211.

[0062] The two sections of the fixed rod 621 are spaced apart and form an operation space 6233. The driving sleeve 6231 is arranged in the operation space 6233, and the two ends of the driving sleeve 6231 extend into the two through-holes 6211 respectively. In order to facilitate the operator to hold the driving sleeve 6231 and reduce the risk of being unable to rotate the driving sleeve 6231 due to hand slipping, a knob 6234 is fixedly connected to the outer periphery of the driving sleeve 6231, and the knob 6234 is located in the operation space 6233. During use, the operator can hold and rotate the knob 6234 to drive the driving sleeve 6231 to rotate synchronously.

[0063] As an implementation, two ends of the driving sleeve 6231 can be connected with the two guide holes 6211 through bearings respectively, so that the driving sleeve 6231 can rotate around itself and cannot move along its axial direction. As another implementation, two positioning blocks are connected on the outer wall of the driving sleeve 6231, and the two positioning blocks are in contact with the ends of the two fixed rods 621 respectively and are used for positioning the axial direction of the driving sleeve 6231, so that the driving sleeve 6231 can rotate around itself and cannot move along its axial direction.

[0064] Correspondingly, by arranging the guide holes 6211 in the fixed rods 621, most of the movable rods 622, the whole of the lead screws 6232 and part of the driving sleeve 6231 can be arranged in the guide holes 6211, so that the external contour size of the vertical frame 6 is reduced, the space occupied by the vertical frame 6 in the switchgear 2 is reduced, and more installation space is left for electrical elements.

[0065] The vertical frame seat 61 can be detachably mounted on the front side of the cross rod 4, wherein the front side of the cross rod 4 refers to the side of the cross rod 4 facing the cabinet door 22 after the cross rod 4 is mounted in the cabinet body 21. Correspondingly, the detachable mounting structure facilitates dismounting and mounting the vertical frame 6 according to the layout of electrical elements in the switchgear 2.

[0066] In some embodiments, referring to Figure 4 , Figure 5 , Figure 6 , the vertical frame seat 61 comprises a seat ring 611 sleeved on the cross rod 4 and sliding along the axial direction of the cross rod 4, a stop structure is arranged between the seat ring 611 and the cross rod 4, a locking device 612 is arranged on the seat ring 611 and used for locking the seat ring 611 on the cross rod 4, and the ear plate spacing adjusting device 62 is arranged on the front side of the cross rod 4 and connected with the seat ring 611.

[0067] The seat ring 611 has an inner hole through which the cross rod 4 passes, and the shape of the inner hole of the seat ring 611 and the cross-sectional shape of the cross rod 4 can be a non-rotational shape that is matched, such as a triangular shape, a rectangular shape, a square shape, an arc shape, etc. The stop structure comprises the inner surface of the inner hole of the seat ring 611 and the outer surface of the cross rod 4, and after the seat ring 611 is sleeved on the cross rod 4, the seat ring 611 can only move on the cross rod 4 but cannot rotate around the cross rod 4 under the cooperation of the inner surface of the inner hole of the seat ring 611 and the outer surface of the cross rod 4.

[0068] The shape of the inner hole of the seat ring 611 and the cross-sectional shape of the cross rod 4 can also be a circular shape that is matched, and the stop structure comprises a stop sliding groove arranged on the outer surface of the cross rod 4 and extending along the axial direction of the cross rod 4 and a stop sliding block arranged on the inner hole surface of the seat ring 611 and slidingly fitted in the stop sliding groove. After the seat ring 611 is sleeved on the cross rod 4 and the stop sliding block is slidingly fitted in the stop sliding groove, the seat ring 611 can only move on the cross rod 4 but cannot rotate around the cross rod 4.

[0069] Correspondingly, by sleeving the seat ring 611 on the cross bar 4 in a slidable manner, the vertical frame 6 can move axially along the cross bar 4, so as to realize the position adjustment of the vertical frame 6 on the cross bar 4; by arranging the rotation-stopping structure between the seat ring 611 and the cross bar 4, the rotation of the vertical frame 6 around the cross bar 4 can be prevented; after the position adjustment of the vertical frame 6 to the predetermined position, the seat ring 611 is locked on the cross bar 4 by the locking device 612, so as to prevent the displacement of the vertical frame 6 in the subsequent use process.

[0070] The locking device 612 is used for locking the seat ring 611 on the cross bar 4. Illustratively, the locking device 612 can include a locking bolt, the seat ring 611 is provided with an internally threaded hole penetrating through, the internally threaded hole is arranged perpendicularly to the axial direction of the cross bar 4, and the rod portion of the locking bolt is threadedly connected in the internally threaded hole and the end portion thereof abuts against the cross bar 4. In operation, the locking bolt is tightened so that the end portion of the locking bolt abuts against the cross bar 4, so as to lock the seat ring 611 on the cross bar 4; the locking bolt is loosened so that the end portion of the locking bolt is separated from the cross bar 4, so as to control the movement of the seat ring 611 along the cross bar 4.

[0071] In some embodiments, referring to Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 , the front side of the cross bar 4 is provided with a plurality of lock holes 41 spaced along the axial direction thereof, and the locking device 612 includes spring locking pins arranged on the seat ring 611 and used for plug-in cooperation with the lock holes 41. Among them, the spring locking pin is a quick positioning pin with spring self-locking function, which can adopt the existing structure and be directly installed on the outer wall of the seat ring 611.

[0072] When it is necessary to adjust the position of the seat ring 611 on the cross bar 4, the spring locking pin is first pulled outward and separated from the lock hole 41 to release the locking of the seat ring 611, then the seat ring 611 is controlled to move to the predetermined position along the cross bar 4, and then the spring locking pin is released and inserted into the lock hole 41 under the action of the spring return force to lock the seat ring 611.

[0073] Illustratively, referring to Figure 7The spring lock pin comprises a plug 6121, a baffle 6122, a spring 6123 and a limiting handle 6124. The inner surface of the inner hole of the seat ring 611 is provided with a groove 6112 at the position facing the front side of the cross bar 4. The plug 6121 is arranged in the groove 6112. One end of the plug 6121 is arranged in the lock hole 41. The other end of the plug 6121 extends to the operation space 6233 through the seat ring 611 and is fixedly connected with the limiting handle 6124. The seat ring 611 is provided with a through hole through which the plug 6121 passes and communicates with the groove 6112. The plug 6121 can move in the through hole. The baffle 6122 is arranged in the groove 6112 and is fixedly connected with the plug 6121. The spring 6123 is sleeved on the plug 6121 and abuts between the baffle 6122 and the bottom of the groove 6112.

[0074] When it is necessary to adjust the position of the seat ring 611 on the cross bar 4, the operator holds the limiting handle 6124 and pulls the plug 6121 outward. The plug 6121 drives the baffle 6122 to move away from the lock hole 41 and compresses the spring 6123 until the plug 6121 is separated from the lock hole 41 to release the locking of the seat ring 611. Then the seat ring 611 is controlled to move along the cross bar 4 to a predetermined position. The limiting handle 6124 is released. The spring 6123 drives the baffle 6122 to drive the plug 6121 to approach the lock hole 41 until the plug 6121 is inserted into the lock hole 41 and the limiting handle 6124 abuts against the seat ring 611.

[0075] In the above locking process, if the plug 6121 is not aligned with the lock hole 41 on the cross bar 4, the end of the plug 6121 will abut against the surface of the cross bar 4 and cannot fall into the lock hole 41 after the limiting handle 6124 is released. At this time, the seat ring 611 only needs to be slightly shifted along the axial direction of the cross bar 4 to align the plug 6121 with the lock hole 41. Once the alignment is completed, the plug 6121 is automatically inserted into the lock hole 41 under the restoring force of the spring 6123, thereby locking the seat ring 611 on the cross bar 4.

[0076] Correspondingly, by arranging the spring lock pin, the seat ring 611 and the cross bar 4 can be quickly locked and released by one hand, which significantly shortens the installation and adjustment time and improves the operation efficiency. By arranging the baffle 6122 and the spring 6123 in the groove 6112 of the seat ring 611, only the limiting handle 6124 protrudes from the outer surface of the seat ring 611, which avoids the risk of hooking caused by the exposure of parts and effectively prevents dust and impurities from invading the groove 6112, thereby ensuring the long-term reliability of the plug 6121.

[0077] The upper and lower ends of the front side of the seat ring 611 are respectively connected with seat plates 613 extending horizontally and outward. The ends of the two seat plates 613 away from the seat ring 611 are respectively connected with the ends of the two fixed rods 621, and the operation space 6233 is formed between the two seat plates 613.

[0078] In some embodiments, referring to Figure 4 、 Figure 5 , along the axial direction of the crossbar 4, a space 7 is provided between the end of the crossbar 4 and the corresponding mounting block 5, and the space 7 is greater than the size of the vertical frame 6 in this direction; the rear side of the crossbar 4 is connected to the mounting block 5 through the connecting block 8, and the seat ring 611 is provided with an avoidance slot 6111 for avoiding the connecting block 8 during sliding along the crossbar 4. Among them, the rear side of the crossbar 4 refers to the side away from the cabinet door 22.

[0079] Correspondingly, this structure can completely disassemble the vertical frame 6 from the crossbar 4, so as to increase or decrease the number of vertical frames 6 according to the number of electrical elements, thereby improving the practicability of the mounting rack.

[0080] The process of disassembling the vertical frame 6 from the crossbar 4 is: first, unlock the locking device 612, then slide the vertical frame 6 along the crossbar 4 into the space between the crossbar 4 and the mounting block 5, so that the vertical frame 6 is completely separated from the crossbar 4, and then the vertical frame 6 can be taken out as a whole.

[0081] The process of installing the vertical frame 6 to the crossbar 4 is: first, place the vertical frame 6 in the space between the end of the crossbar 4 and the mounting block 5, and make the connecting block 8 located in the avoidance slot 6111, at the same time, make the inner hole of the seat ring 611 align with the end of the crossbar 4, then move the vertical frame 6 along the axial direction of the crossbar 4, so that the crossbar 4 is inserted into the inner hole of the seat ring 611, then move the vertical frame 6 along the crossbar 4 to the predetermined position, and lock the vertical frame 6 on the crossbar 4 by using the locking device 612.

[0082] The lug plate 63 can be a vertically arranged round plate or a rectangular plate, and the lug plate bolt hole 631 penetrates through the lug plate 63, which can be a circular hole. In this embodiment, the lug plate bolt hole 631 is a horizontally arranged waist hole, which can provide a horizontal fine adjustment allowance for the bolt to absorb the cumulative error of part manufacturing and assembly, and realize the quick installation of the bolt.

[0083] The mounting block 5 can be fixedly connected with the side wall of the cabinet body 21 by means of bolts or adhesion. In some embodiments, referring to Figure 2 、 Figure 3 , the inner surface of the side wall of the cabinet body 21 is provided with a sliding groove 211 extending in the horizontal direction, the front end of the sliding groove 211 extends to the front side of the side wall of the cabinet body 21 and is in an open structure, the mounting block 5 is slidingly fitted in the sliding groove 211, and the mounting block 5 is provided with a positioning device 9 for positioning it in the sliding groove 211. Among them, the front end of the sliding groove 211 refers to the end towards the cabinet door 22, and at least two sliding grooves 211 can be provided on the inner surface of each side wall of the cabinet body 21 from top to bottom.

[0084] Correspondingly, by arranging the sliding groove 211 on the inner surface of the side wall of the cabinet body 21 and extending the front end of the sliding groove 211 to the front side of the side wall of the cabinet body 21 in an open structure, the mounting block 5 can be slidably mounted in the sliding groove 211 and can be separated from the sliding groove 211 through the opening at the front end of the sliding groove 211, so that the electrical element mounting rack can be slid to the outside of the cabinet body 21 as a whole to facilitate the installation of the electrical elements.

[0085] Since the electrical elements are installed through the cooperation of the bolts, the nuts and the ear plate bolt holes 631, when installing the electrical elements, the electrical element mounting rack can be first placed outside the cabinet body 21, the electrical elements are first installed on the vertical frame 6 in the external open space, the horizontal rod 4 is then slid to the predetermined position in the cabinet body 21 through the sliding cooperation of the mounting block 5 and the sliding groove 211, the mounting block 5 is then positioned in the sliding groove 211 through the positioning device 9 to avoid its movement in the sliding groove 211, and then the subsequent wiring work is performed, thereby improving the convenience of installation.

[0086] The positioning device 9 is used to position the mounting block 5 in the sliding groove 211 to prevent the movement of the mounting block 5 in the sliding groove 211. For example, the positioning device 9 can include a positioning bolt penetrating the mounting block 5 along the axial direction of the horizontal rod 4, the positioning bolt is threadedly connected with the mounting block 5, and the end of the positioning bolt is used to abut against the inner surface of the side wall of the cabinet body 21.

[0087] In use, the positioning bolt is tightened until the end of the positioning bolt abuts against the inner surface of the side wall of the cabinet body 21, so that the mounting block 5 is positioned in the sliding groove 211 to prevent the movement of the mounting block 5 in the sliding groove 211. When the positioning bolt is loosened, the end of the positioning bolt is separated from the inner surface of the side wall of the cabinet body 21, so that the mounting block 5 is released, and the mounting block 5 can slide in the sliding groove 211.

[0088] In some embodiments, referring to Figure 8 , Figure 9 , Figure 10 , the mounting block 5 is provided with an elongated mounting cavity 51 extending in the sliding direction thereof, the side of the mounting block 5 facing the horizontal rod 4 is provided with a pressing opening 52 communicating with the front end of the mounting cavity 51, and the side of the mounting block 5 away from the horizontal rod 4 is provided with a positioning opening 53 communicating with the rear end of the mounting cavity 51; the positioning device 9 includes a pressing rod 91 arranged in the mounting cavity 51, the middle of the pressing rod 91 is rotationally connected with the mounting block 5 through a vertical rotating shaft 92, the front end of the pressing rod 91 is opposite to the pressing opening 52 and is provided with an elastic element 93 between the inner wall of the mounting cavity 51 on the side away from the pressing opening 52, the rear end of the pressing rod 91 is opposite to the positioning opening 53 and is connected with a positioning block 94 on the side facing the positioning opening 53, and the sliding groove 211 is provided with a positioning groove 2111 for positioning cooperation with the positioning block 94. The front end of the mounting cavity 51 and the front end of the pressing rod 91 both refer to the end facing the cabinet door 22, and the elastic element 93 can include a spring sheet, a spring or the like.

[0089] When the electrical element is installed on the vertical frame 6 of the electrical element mounting rack outside the cabinet body 21, the operator holds the two mounting blocks 5 with both hands, and uses the thumbs to press the front end of the pressing rod 91 from the pressing port 52. The elastic member 93 is compressed, the pressing rod 91 rotates around the vertical rotating shaft 92, the rear end of the pressing rod 91 drives the positioning block 94 to be accommodated in the mounting cavity 51, the operator slides the two mounting blocks 5 into the sliding groove 211 of the two opposite side walls of the cabinet body 21, and then releases the mounting blocks 5 and the pressing rod 91. Under the restoring force provided by the elastic member 93, the pressing rod 91 reversely rotates around the vertical rotating shaft 92, so that the rear end of the pressing rod 91 drives the positioning block 94 to protrude from the positioning port 53 and abut against the side surface of the sliding groove 211. Then, the entire electrical element mounting rack is pushed to move towards the rear side of the cabinet body 21, the mounting block 5 slides in the sliding groove 211, and when the positioning block 94 is aligned with the positioning groove 2111, the positioning block 94 is automatically inserted into the positioning groove 2111 under the restoring force provided by the elastic member 93, so as to position the mounting block 5 in the sliding groove 211 and prevent the mounting block 5 from moving in the sliding groove 211.

[0090] When the electrical element mounting rack is detached from the cabinet body 21, the operator presses the front end of the pressing rod 91 with the thumbs of both hands from the two pressing ports 52, the elastic member 93 is compressed, the pressing rod 91 rotates around the vertical rotating shaft 92, the rear end of the pressing rod 91 drives the positioning block 94 to be separated from the positioning groove 2111 and accommodated in the mounting cavity 51, so as to release the positioning of the mounting block 5. Then, the operator pulls the entire electrical element mounting rack to move forward until the entire electrical element mounting rack moves to the outside of the cabinet body 21.

[0091] In order to improve the reliability of the positioning cooperation between the positioning block 94 and the positioning groove 2111, the shapes of the positioning block 94 and the positioning groove 2111 are conical or pyramid-shaped.

[0092] Referring to Figure 2 , Figure 3 The embodiment of the present application provides a power distribution cabinet 2, which comprises a cabinet body 21, a cabinet door 22 hinged to the cabinet body 21, and an electrical element mounting rack 23 arranged in the cabinet body 21. The electrical element mounting rack 23 is the electrical element mounting rack in the power distribution cabinet provided by the embodiment of the present application.

[0093] The cabinet body 21 is surrounded by two opposite side walls, oppositely arranged top and bottom walls, and a rear wall, and has an accommodating cavity and an opening communicating with the accommodating cavity. The cabinet door 22 is hinged to one of the side walls, and the opening on the front side of the first cabinet body 10 can be opened and closed by rotating the cabinet door 22. A plurality of electrical element mounting racks 23 are arranged in the cabinet body 21 from top to bottom, and the mounting block 5 of each electrical element mounting rack 23 is connected to the two opposite side walls of the cabinet body 21.

[0094] The power distribution cabinet 2 provided by the embodiment of the present application can flexibly install electrical elements of different height specifications on the same horizontal rod 4 after the electrical element mounting rack 23 is installed in the cabinet body 21, solves the problem that each group of horizontal rod assemblies in the traditional electrical element mounting rack can only install electrical elements of the same specification, improves the versatility and flexibility of the electrical element mounting rack, and effectively reduces the waste of the internal space of the power distribution cabinet.

[0095] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An electrical component mounting rack for use in an electrical switchgear cabinet, characterized in that, The utility model provides a kind of cabinet, including horizontally arranged crossbar (4), two mounting blocks (5) and several vertical frames (6) arranged along the axial direction of the crossbar (4), two mounting blocks (5) are respectively connected at the two ends of the crossbar (4), and are used to be connected with the two opposite side walls of cabinet body (21), the vertical frame (6) includes vertical frame seat (61) connected with the crossbar (4), lug plate spacing adjusting device (62) connected with the vertical frame seat (61), two lug plates (63) connected on the upper and lower sides of lug plate spacing adjusting device (62), lug plate bolt hole (631) is provided on the lug plate (63), and lug plate spacing adjusting device (62) is used to adjust the distance between two lug plates (63) in vertical direction.

2. The electrical component mounting rack within an electrical switchgear cabinet of claim 1, wherein, The lug plate spacing adjusting device (62) includes a vertical fixed rod (621) connected with the vertical frame seat (61), two vertical movable rods (622) slidably connected with the fixed rod (621) along the axial direction thereof, and a movable rod driving member (623) provided on the fixed rod (621) and connected with the two movable rods (622), the movable rod driving member (623) is used to drive the two movable rods (622) to move closer to or away from each other, and the two movable rods (622) are respectively connected with the two lug plates (63).

3. The electrical component mounting rack within an electrical switchgear cabinet of claim 2, wherein, The movable rod driving member (623) includes a driving sleeve (6231) vertically arranged and rotationally connected with the fixed rod (621) about its own axis, two lead screws (6232) respectively threadedly connected with the two ends of the inner cavity of the driving sleeve (6231), the thread rotation directions of the two lead screws (6232) are opposite, and the two movable rods (622) are respectively connected with the two lead screws (6232).

4. The electrical component mounting rack within an electrical switchgear cabinet of claim 3, wherein, The fixed rod (621) includes two sections spaced apart in vertical direction, each section of the fixed rod (621) is provided with an upper and lower through guide hole (6211), the two movable rods (622) are respectively slidably fitted in the two guide holes (6211), and an anti-rotation structure is provided between the movable rods (622) and the guide holes (6211), and the driving sleeve (6231) is rotationally installed between the two sections of the fixed rod (621), and the two ends of the driving sleeve (6231) are respectively provided in the two guide holes (6211).

5. The electrical component mounting rack within an electrical switchgear cabinet of claim 1, wherein, The vertical frame seat (61) includes a seat ring (611) sleeved on the crossbar (4) and sliding along the axial direction thereof, a rotation-stopping structure is provided between the seat ring (611) and the crossbar (4), the seat ring (611) is provided with a locking device (612) for locking the seat ring (611) on the crossbar (4), and the lug plate spacing adjusting device (62) is provided on the front side of the crossbar (4) and connected with the seat ring (611).

6. The electrical component mounting rack within an electrical switchgear cabinet of claim 5, wherein, The front side of the crossbar (4) is provided with a plurality of lock holes (41) spaced apart along the axial direction thereof, and the locking device (612) includes a spring lock pin provided on the seat ring (611) and used for plug-in cooperation with the lock holes (41).

7. The electrical component mounting rack within an electrical switchgear cabinet of claim 5, wherein, Along the axial direction of the cross bar (4), a distance (7) is provided between the end of the cross bar (4) and the corresponding mounting block (5), the distance (7) being greater than the size of the vertical frame (6) in this direction; the rear side of the cross bar (4) is connected with the mounting block (5) through a connecting block (8), and the seat ring (611) is provided with an avoiding groove (6111) for avoiding the connecting block (8) during sliding along the cross bar (4).

8. The electrical component mounting rack within an electrical switchgear cabinet of claim 1, wherein, The inner surface of the side wall of the cabinet body (21) is provided with a sliding groove (211) extending in the horizontal direction, the front end of the sliding groove (211) extending to the front side of the side wall of the cabinet body (21) and being in an open structure, the mounting block (5) being slidingly fitted in the sliding groove (211), and the mounting block (5) being provided with a positioning device (9) for positioning it in the sliding groove (211).

9. The electrical component mounting rack within an electrical switchgear cabinet of claim 8, wherein, The mounting block (5) is provided with an elongated mounting cavity (51) extending in the sliding direction thereof, one side of the mounting block (5) facing the cross bar (4) is provided with a pressing opening (52) communicating with the front end of the mounting cavity (51), and the side of the mounting block (5) away from the cross bar (4) is provided with a positioning opening (53) communicating with the rear end of the mounting cavity (51). The positioning device (9) comprises a pressing rod (91) provided in the mounting cavity (51), the middle of the pressing rod (91) being rotationally connected with the mounting block (5) through a vertical rotating shaft (92), the front end of the pressing rod (91) being opposite to the pressing opening (52) and being provided with an elastic member (93) between the inner wall of the mounting cavity (51) on the side away from the pressing opening (52), the rear end of the pressing rod (91) being opposite to the positioning opening (53) and being connected with a positioning block (94) on the side facing the positioning opening (53), and the sliding groove (211) is provided with a positioning groove (2111) for positioning cooperation with the positioning block (94).

10. A power distribution cabinet comprising a cabinet body (21), a cabinet door (22) hingedly attached to the cabinet body (21), and an electrical component mounting rack (23) disposed within the cabinet body (21), characterized by, The electrical element mounting rack (23) is the electrical element mounting rack in the power distribution cabinet according to any one of claims 1 to 9.

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