Buckle type assembly modular auxiliary switch and chassis truck

Abstract

The utility model belongs to the field of switch cabinets, and particularly relates to a buckle type assembly modular auxiliary switch and a chassis truck. The modularized auxiliary switch comprises a mounting plate, an upper cover and an operating rod, the mounting plate comprises a mounting bottom plate and mounting supports which are located at the two ends of the mounting bottom plate and extend towards one side, the upper cover is fixed to the surface of the side, provided with the mounting supports, of the mounting bottom plate, and the operating rod is arranged between the upper cover and the mounting plate. The upper cover is provided with a plurality of wiring parts, the wiring parts are arranged outwards, the mounting bracket comprises a fixed base and a connecting plate connected between the fixed base and the mounting bottom plate, the height of the fixed base is higher than that of the upper cover, and the bottom of the fixed base is provided with a buckle assembly used for being in buckle connection with a chassis vehicle body. According to the utility model, the fixing base of the auxiliary switch is provided with the buckle assembly which is used for being in buckle connection with the chassis vehicle body, so that the modularized auxiliary switch can be directly fixed on the chassis vehicle in a buckle connection manner, and the installation is convenient.

Description

Technical Field

[0001] The utility model belongs to the field of switch cabinets, and in particular relates to a snap-on assembly modular auxiliary switch and a chassis vehicle. Background Art

[0002] The chassis is a crucial component of medium-voltage switchgear. It primarily consists of a frame, rollers, propulsion mechanism, interlocking mechanism, and auxiliary switches. The frame, the chassis's primary structure, is typically constructed of metal (such as steel) and serves to support the switchgear body, ensuring stable support during movement and securing. Four or more rollers are mounted at the bottom of the frame, enabling the chassis to flexibly move along the switchgear rails and facilitate the insertion and removal of the switchgear. Auxiliary switches are typically installed near the chassis' operating mechanism or at the connection between the chassis and the body. They are connected to the chassis' propulsion mechanism and interlocking mechanism via mechanical linkages or electrical wiring, enabling functions such as position signal feedback, interlocking control for enhanced safety, and operational sequence control.

[0003] The applicant's prior patent CN 201921005874.0 discloses a chassis vehicle with modular auxiliary switch installation. This solves the problem of multiple auxiliary switches on existing circuit breaker chassis vehicles being installed separately, which is cumbersome to assemble and leads to unreliable wiring. The chassis vehicle comprises an end beam, a screw rod, a vehicle body, and a handle. The handle, via the screw rod, drives the vehicle body to move and position the circuit breaker in either the test or operating position. The vehicle body is equipped with multiple auxiliary switches, each of which includes an upper cover and an operating lever. The upper cover is provided with multiple wiring slots for terminal blocks. The upper covers of the different auxiliary switches are fixed to the same mounting plate. The operating levers of the different auxiliary switches are located between the mounting plate and the upper cover. The screw rod drives one or more auxiliary switch operating levers through a transmission mechanism to switch the corresponding auxiliary switch. This patent allows multiple auxiliary switches to share a single mounting plate, making wiring easier and less prone to interference. The mounting plate is bolted to the chassis body, and the vehicle is installed as a complete modular unit within the chassis, making installation convenient and easy, while reducing component count and production costs. However, the mounting plate of this patent still needs to be installed by bolts, which affects the assembly efficiency. 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 snap-on assembly modular auxiliary switch and a chassis vehicle.

[0005] The technical solution adopted by the present invention is as follows: a snap-on assembly modular auxiliary switch, including a mounting plate, an upper cover, and an operating rod. The mounting plate includes a mounting base and mounting brackets formed at both ends of the mounting base and extending to one side. The upper cover is fixed to a side surface of the mounting base provided with a mounting bracket and the operating rod is arranged between the upper cover and the mounting plate. The upper cover is provided with a plurality of wiring parts and the wiring parts are arranged outward. The mounting bracket includes a fixed base and a first connecting plate connected between the fixed base and the mounting base, so the height of the fixed base is higher than the height of the upper cover. The bottom of the fixed base is provided with a snap-on assembly for snapping connection with the chassis vehicle body.

[0006] Preferably, the snap assembly includes an L-shaped connecting arm fixed on a fixed base at one end of the mounting plate, an extended straight arm fixed on a fixed base at the other end of the mounting plate, and a snap block with a guide surface fixed on the extended straight arm.

[0007] Preferably, a first connecting hole is provided on the fixing base.

[0008] Preferably, at least two upper covers are fixedly connected to the mounting base plate, and an operating rod is fixed between each upper cover and the mounting plate.

[0009] Preferably, at least two annular connecting seats are provided on the mounting base plate, the upper cover is connected to the annular connecting seats, the annular connecting seats and the upper cover form an accommodating cavity, lower semicircular limiting grooves are respectively provided at both ends of the annular connecting seat, and upper semicircular limiting grooves are respectively provided at both ends of the upper cover, the lower semicircular limiting groove and the upper semicircular limiting groove are combined to form a through hole that is adapted to the shape of the operating rod for it to pass through.

[0010] Preferably, the annular connecting seat is connected to the upper cover via threaded fasteners.

[0011] Preferably, a positioning protrusion is provided on the annular connecting seat, and a positioning groove cooperating with the positioning protrusion is provided on the upper cover.

[0012] A chassis vehicle equipped with a modular auxiliary switch as described above includes an end beam, a screw rod and a vehicle body. One end of the screw rod is arranged on the vehicle body, and the other end passes through the vehicle body and is arranged on the end beam and is adapted to a handle. The screw rod drives the operating lever of the auxiliary switch through a transmission mechanism to switch the corresponding auxiliary switch. The vehicle body is provided with a snap-on portion that cooperates with the snap-on assembly.

[0013] Preferably, a wiring hole is provided on the vehicle body, and the snap-fitting portion is a matching strip provided at both ends of the wiring hole. The matching strip is higher than the vehicle body bottom plate, forming a concave cavity for the snap-fit ​​assembly to be inserted into.

[0014] Preferably, a baffle for shielding the wiring hole is connected to the vehicle body, a sunken second connecting plate is provided on the baffle, and a second connecting hole is provided on the second connecting plate;

[0015] The buckle assembly includes two L-shaped connecting arms fixed to a fixed base at one end of the mounting plate, two extended straight arms fixed to a fixed base at the other end of the mounting plate, and a buckle block with a guide surface fixed to the extended straight arms, wherein the two extended straight arms are spaced a certain distance apart.

[0016] The L-shaped connecting arm cooperates with one cooperating strip and the buckle block cooperates with the other cooperating strip;

[0017] The matching strip that matches the snap block extends to the area between the two extended straight arms to form a connecting ear, and the connecting ear is provided with a third connecting hole, and the sunken second connecting plate is in contact with the connecting ear.

[0018] The beneficial effects of the present invention are as follows: the present invention provides a snap-on assembly for snap-connecting to the chassis vehicle body on the fixed base of the auxiliary switch, so that the modular auxiliary switch can be directly snap-connected and fixed to the chassis vehicle, which is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0020] Figure 1 This is a structural diagram of an auxiliary switch according to an embodiment of the present invention;

[0021] Figure 2 This is a structural diagram of a mounting plate according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of a mounting plate according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of an upper cover according to an embodiment of the present invention;

[0024] Figure 5 This is a structural schematic diagram of a chassis vehicle according to an embodiment of the present invention from one angle;

[0025] Figure 6 This is a schematic structural diagram of a vehicle body according to an embodiment of the present utility model;

[0026] Figure 7 This is an exploded view of a chassis vehicle according to an embodiment of the present invention;

[0027] Figure 8 for Figure 7 A magnified schematic diagram of part A;

[0028] In the figure, mounting plate 1, mounting base plate 101, fixed base 102, first connecting plate 103, L-shaped connecting arm 104, extended straight arm 105, guide surface 106, snap block 107, first connecting hole 108, annular connecting seat 109, lower semicircular limiting groove 1010, positioning protrusion 1011, upper cover 2, upper semicircular limiting groove 201, positioning groove 202, operating rod 3, threaded fastener 4, end beam 5, screw rod 6, vehicle body 7, wiring hole 701, matching strip 702, connecting ear 703, third connecting hole 704, fourth connecting hole 705, transmission mechanism 8, baffle 9, second connecting plate 901, second connecting hole 902. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0031] The directional and positional terms used in this invention, such as up, down, front, back, left, right, inside, outside, top, bottom, and side, are merely references to the directions or positions in the accompanying drawings. Therefore, the directional and positional terms used are intended to illustrate and facilitate understanding of this invention and are not intended to limit the scope of protection of this invention.

[0032] A snap-on assembly modular auxiliary switch, such as Figure 1 As shown, it includes a mounting plate 1, an upper cover 2, and an operating rod 3. Figure 2 、 Figure 3As shown, the mounting plate 1 includes a mounting base 101 and mounting brackets extending to one side at both ends of the mounting base 101. The upper cover 2 is fixed to the side surface of the mounting base 101 provided with the mounting bracket, and the operating lever 3 is provided between the upper cover 2 and the mounting plate 1. The upper cover 2 is provided with a plurality of wiring portions, and the wiring portions are arranged outward. The mounting bracket includes a fixed base 102 and a first connecting plate 103 connected between the fixed base 102 and the mounting base 101. Therefore, the height of the fixed base 102 is higher than that of the upper cover 2. The bottom of the fixed base 102 is provided with a snap-on assembly for snap-on connection with the chassis body. By providing a snap-on assembly for snap-on connection with the chassis body on the fixed base of the auxiliary switch, the modular auxiliary switch can be directly snap-on connected and fixed to the chassis, facilitating installation.

[0033] Further, such as Figure 2 、 Figure 3 As shown, the snap assembly includes an L-shaped connecting arm 104 fixed on a fixed base 102 located at one end of the mounting plate 1, an extended straight arm 105 fixed on the fixed base 102 located at the other end of the mounting plate 1, and a snap block 107 with a guide surface 106 fixed on the extended straight arm 105.

[0034] Furthermore, the fixing base 102 is provided with a first connection hole 108. Correspondingly, the chassis body is provided with a fourth connection hole 705, through which the auxiliary switch fixed by the buckle can be further reinforced by bolts when necessary.

[0035] Furthermore, the modular auxiliary switch of this embodiment includes at least two switch groups. Specifically, one switch group includes an upper cover 2 and an operating rod 3, that is, at least two upper covers 2 are fixedly connected to the mounting base 101, and an operating rod 3 is fixed between each upper cover 2 and the mounting plate 1. A moving contact is provided on the operating rod 3, and a static contact is fixed between the upper cover 2 and the mounting plate 1. The upper cover 2 is provided with a wiring structure for wiring the static contact. Each operating rod 3 rotates to rotate the moving contact fixed on the operating rod 3, thereby completing the switching action of the switch group.

[0036] Further, such as Figure 2 As shown, at least two annular connecting seats 109 are provided on the mounting base 101, and the upper cover 2 is connected to the annular connecting seat 109. The annular connecting seat 109 and the upper cover 2 form an accommodating cavity. The two ends of the annular connecting seat 109 are respectively provided with lower semicircular limiting grooves 1010. Figure 4 As shown, upper semicircular limiting grooves 201 are provided at both ends of the upper cover 2. The lower semicircular limiting grooves 1010 and the upper semicircular limiting grooves 201 combine to form a through hole that matches the shape of the operating rod 3 and allows it to pass through. The accommodating cavity formed between the annular connecting seat 109 and the upper cover 2 accommodates the static contact and the operating rod 3 to which the movable contact is fixed.

[0037] Furthermore, the annular connection seat 109 is connected to the upper cover 2 via a threaded fastener 4. Furthermore, a positioning protrusion 1011 is provided on the annular connection seat 109, and a positioning groove 202 is provided on the upper cover 2 to cooperate with the positioning protrusion 1011, so as to facilitate positioning and installation.

[0038] like Figure 5 As shown, a chassis vehicle equipped with the modular auxiliary switch as described above includes an end beam 5, a screw rod 6 and a vehicle body 7. One end of the screw rod 6 is arranged on the vehicle body 7, and the other end passes through the vehicle body 7 and is arranged on the end beam 5 and is adapted to the handle. The screw rod 6 drives the operating lever 3 of the auxiliary switch through the transmission mechanism 8 to switch the corresponding auxiliary switch. The vehicle body 7 is provided with a snap-on portion that cooperates with the snap-on assembly. Specifically, as Figure 6 、 Figure 7 As shown, the vehicle body 7 is provided with a wiring hole 701, and the snap-fitting portion is a matching strip 702 provided at both ends of the wiring hole 701. The matching strip 702 is higher than the bottom plate of the vehicle body 7, forming a concave cavity for the snap assembly to be snapped into.

[0039] Furthermore, the vehicle body 7 is connected to a baffle 9 for covering the wiring hole 701, and the baffle 9 is provided with a sunken second connecting plate 901, and the second connecting plate 901 is provided with a second connecting hole 902; the two extended straight arms 105 of the snap assembly are separated by a certain distance; the L-shaped connecting arm 104 cooperates with a matching strip 702 and the snap block 107 cooperates with another matching strip 702; wherein the matching strip 702 cooperating with the snap block 107 extends to the area between the two extended straight arms 105 to form a connecting ear 703, and the connecting ear 703 is provided with a third connecting hole 704, and the sunken second connecting plate 901 fits the connecting ear 703.

[0040] like Figure 7 As shown, when installing this embodiment, the L-shaped connecting arm 104 is first inserted under one matching strip 702 , and then the buckle block 107 is inserted under the other matching strip 702 through the guide surface 106 to stably fix the modular auxiliary switch on the vehicle body 7 .

[0041] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A snap-on assembly modular auxiliary switch, comprising a mounting plate (1), an upper cover (2), and an operating lever (3), characterized in that: The mounting plate (1) comprises a mounting base (101) and mounting brackets formed by extending to one side at both ends of the mounting base (101); the upper cover (2) is fixed to a surface of the mounting base (101) on one side of which the mounting bracket is provided, and the operating rod (3) is provided between the upper cover (2) and the mounting plate (1); the upper cover (2) is provided with a plurality of wiring portions, and the wiring portions are arranged outward; the mounting bracket comprises a fixed base (102) and a first connecting plate (103) connected between the fixed base (102) and the mounting base (101); therefore, the height of the fixed base (102) is higher than that of the upper cover (2); and a buckle assembly for buckling with a chassis vehicle body is provided at the bottom of the fixed base (102).

2. The snap-on assembly modular auxiliary switch according to claim 1, characterized in that: The buckle assembly comprises an L-shaped connecting arm (104) fixed on a fixed base (102) located at one end of the mounting plate (1), an extended straight arm (105) fixed on the fixed base (102) located at the other end of the mounting plate (1), and a buckle block (107) having a guide surface (106) fixed on the extended straight arm (105).

3. The snap-on assembly modular auxiliary switch according to claim 2, characterized in that: The fixed base (102) is provided with a first connection hole (108).

4. The snap-on assembly modular auxiliary switch according to claim 1, characterized in that: At least two upper covers (2) are fixedly connected to the mounting base plate (101), and an operating rod (3) is fixed between each upper cover (2) and the mounting plate (1).

5. The snap-on assembly modular auxiliary switch according to claim 4, characterized in that: At least two annular connecting seats (109) are provided on the mounting base (101), the upper cover (2) is connected to the annular connecting seats (109), the annular connecting seats (109) and the upper cover (2) form an accommodating cavity, the annular connecting seats (109) are respectively provided with lower semicircular limiting grooves (1010) at both ends, and the upper cover (2) is respectively provided with upper semicircular limiting grooves (201), the lower semicircular limiting grooves (1010) and the upper semicircular limiting grooves (201) are combined to form a through hole that is adapted to the shape of the operating rod (3) for the operating rod (3) to pass through.

6. The snap-on assembly modular auxiliary switch according to claim 5, characterized in that: The annular connecting seat (109) is connected to the upper cover (2) via a threaded fastener (4).

7. The snap-on assembly modular auxiliary switch according to claim 6, characterized in that: A positioning protrusion (1011) is provided on the annular connecting seat (109), and a positioning groove (202) that cooperates with the positioning protrusion (1011) is provided on the upper cover (2).

8. A chassis vehicle provided with a snap-on assembly modular auxiliary switch according to any one of claims 1 to 7, characterized in that: The invention comprises an end beam (5), a screw rod (6) and a vehicle body (7), wherein one end of the screw rod (6) is arranged on the vehicle body (7), and the other end passes through the vehicle body (7) and is arranged on the end beam (5) and is adapted to the handle. The screw rod (6) drives the operating rod (3) of the auxiliary switch through the transmission mechanism (8) to switch the corresponding auxiliary switch. The vehicle body (7) is provided with a clamping portion that cooperates with the buckle assembly.

9. The chassis vehicle according to claim 8, characterized in that: The vehicle body (7) is provided with a wiring hole (701), and the clamping portion is a matching strip (702) provided at both ends of the wiring hole (701). The matching strip (702) is higher than the bottom plate of the vehicle body (7), forming a concave cavity for the buckle assembly to be clamped into.

10. The chassis vehicle according to claim 9, characterized in that: A baffle (9) for shielding the wiring hole (701) is connected to the vehicle body (7); a sunken second connecting plate (901) is provided on the baffle (9); and a second connecting hole (902) is provided on the second connecting plate (901); The buckle assembly comprises two L-shaped connecting arms (104) fixed on a fixed base (102) located at one end of the mounting plate (1), two extended straight arms (105) fixed on the fixed base (102) located at the other end of the mounting plate (1), and a buckle block (107) having a guide surface (106) fixed on the extended straight arms (105), wherein the two extended straight arms (105) are spaced apart by a certain distance. The L-shaped connecting arm (104) cooperates with one cooperation strip (702) and the buckle block (107) cooperates with the other cooperation strip (702); The mating strip (702) mating with the snap block (107) extends toward the area between the two extended straight arms (105) to form a connecting ear (703), the connecting ear (703) being provided with a third connecting hole (704), and the sunken second connecting plate (901) being in contact with the connecting ear (703).

Images