CN212455099U

CN212455099U - A piece together cabinet device for concatenation between two cabinets

Info

Publication number: CN212455099U
Application number: CN202020642901.1U
Authority: CN
Inventors: 黄建锋; 林发光; 王键; 兰成木
Original assignee: Fujian Senda Electrical Co ltd
Current assignee: Fujian Senda Electrical Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2021-02-02
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to a piece together cabinet device for being spliced between two cabinets, one is the stationary cabinet of position motionless in two cabinets, and another is can be relative the removal cabinet of stationary cabinet translation. Fixed cabinet and movable cabinet set up side by side along transversely, piece together the cabinet device and piece together the cabinet subassembly with the back including preceding piece together the cabinet subassembly. The front cabinet assembly comprises a first screw rod, a first front assembly workpiece and a second front assembly workpiece, the rear cabinet assembly comprises a second screw rod, and the first rear assembly workpiece and the second rear assembly workpiece are assembled. The utility model provides a pair of a piece together cabinet device for concatenation between two cabinets, but the device convenient and fast puts in place two cabinet body concatenations, and not only simple structure, equipment are convenient, lightly easily carry, low cost operate labour saving and time saving moreover.

Description

A piece together cabinet device for concatenation between two cabinets

Technical Field

The utility model relates to a relevant accessory field of cubical switchboard, concretely relates to a piece together cabinet device that is used for concatenation between two cabinets.

Background

The utility model relates to a cubical switchboard relevant accessory field, concretely relates to be used for piecing together cabinet device of concatenation between two cabinets

SUMMERY OF THE UTILITY MODEL

The utility model provides a piece together cabinet device for concatenation between two cabinets, but the device convenient and fast puts in place two cabinet body concatenations, not only simple structure, equipment convenience, lightly easily carry, low cost, operation labour saving and time saving moreover.

The utility model discloses a following technical scheme realizes:

a cabinet splicing device for splicing two cabinets, one of the two cabinets is a fixed cabinet which is not fixed in position, the other cabinet is a movable cabinet which can move horizontally relative to the fixed cabinet, the fixed cabinet and the movable cabinet are arranged side by side along the transverse direction,

the cabinet splicing device comprises a front cabinet splicing assembly transversely arranged between the front parts of the two cabinets and a rear cabinet splicing assembly transversely arranged between the rear parts of the two cabinets;

the front assembled cabinet assembly comprises a first screw rod horizontally extending along the transverse direction, a first front assembled workpiece connected between one transverse side of the first screw rod and the front part of the movable cabinet, and a second front assembled workpiece connected between the other transverse side of the first screw rod and the front part of the fixed cabinet; the front assembling workpiece I comprises a supporting plate fixedly arranged on the movable cabinet and far away from the front outer side of the lateral wall on one transverse side of the fixed cabinet and a first thrust ball bearing assembly which is rotatably sleeved on the first screw rod and is positioned on one side of the supporting plate far away from the fixed cabinet, a first through hole for penetrating the first screw rod is arranged in the middle of the supporting plate, and the aperture of the first through hole is larger than the outer diameter of the first screw rod and smaller than the outer diameter of the first thrust ball bearing assembly; the second front assembling workpiece comprises a clamping piece which is fixedly arranged at the front part of the fixed cabinet, a second through hole for penetrating the first screw rod is arranged on the clamping piece, after the clamping piece is arranged in place on the fixed cabinet, the second through hole and the first through hole are arranged along the transverse direction in a coaxial manner, the first screw rod is provided with an external thread at the periphery of the part where the first screw rod is matched and connected with the second through hole, and the second through hole is internally provided with an internal thread which is matched and connected with the external thread of the first screw rod; the first screw rod is provided with a first rocking handle used for driving the first screw rod to rotate relative to the first thrust ball bearing component at the outer end part of the transverse end of the first screw rod connected with the first thrust ball bearing component;

the rear assembled cabinet assembly comprises a second screw rod horizontally extending along the transverse direction, a first rear assembled workpiece connected between one transverse side of the second screw rod and the rear part of the movable cabinet, and a second rear assembled workpiece connected between the other transverse side of the second screw rod and the rear part of the fixed cabinet; the rear assembling workpiece I comprises a supporting seat fixedly arranged at the rear part of the movable cabinet and a second thrust ball bearing assembly which is rotatably sleeved on the second screw rod and is positioned at one side of the supporting seat far away from the fixed cabinet; a fourth through hole for penetrating the second screw rod is formed in the middle of the abutting seat, and the diameter of the fourth through hole is larger than the outer diameter of the second screw rod and smaller than the outer diameter of the second thrust ball bearing assembly;

the rear assembling workpiece II comprises a connecting seat which is fixedly arranged at the rear part of the fixed cabinet, a fifth through hole for penetrating the second screw rod is arranged on the connecting seat, and when the abutting seat is arranged at the arrival position of the movable cabinet and the connecting seat is arranged at the arrival position of the fixed cabinet, the fifth through hole and the fourth through hole are arranged coaxially along the transverse direction; the second screw rod is provided with an external thread at the periphery of the part matched and connected with the fifth through hole, and the fifth through hole is internally provided with an internal thread matched and connected with the external thread of the second screw rod; and a second rocking handle used for driving the second screw rod to rotate relative to the second thrust ball bearing assembly is arranged at the outer end part of the transverse end of the second screw rod connected with the second thrust ball bearing assembly.

The principle and the process of the scheme are as follows: when the movable cabinet is used, the two cabinets are arranged side by side in the transverse direction, then the supporting plates of the front cabinet assembly are fixed on the outer side of the transverse side wall, far away from the fixed cabinet, of the movable cabinet, the clamping pieces are clamped on the fixed cabinet and can be arranged on the bottom plate of the instrument room, then the first lead screw sequentially penetrates through the first through hole and the second through hole of the supporting plates, the supporting seat of the rear cabinet assembly is fixed on the movable cabinet, can be fixed on the lifting lug, far away from one side of the fixed cabinet, and the connecting seat is clamped on the fixed cabinet and can be fixed in the lifting lug, near one side of the movable cabinet, then the second lead screw sequentially penetrates through the fourth through hole and the fifth through hole, and then the two rocking handles are rotated simultaneously, so that the movable cabinet relatively moves towards the fixed cabinet and is finally.

Furthermore, the abutting plate of the first front assembled workpiece is fixedly arranged on the cabinet assembling hole arranged at the front part of the lateral wall of the transverse side of the movable cabinet far away from the fixed cabinet through the connecting hole arranged on the abutting plate; preceding joint spare joint of assembling work piece two is on the instrument room bottom plate of stationary cabinet, the instrument room bottom plate of stationary cabinet sets up along horizontal level, and the front side is equipped with the upper flange that makes progress arch and extend along horizontal level, joint spare rear side is equipped with a notch towards the back and extends to the second at the horizontal both ends of joint spare along horizontal direction and leads to the groove, the upside cell wall bottom that the groove was led to the second be equipped with a notch down and extend to being used for the card of the horizontal both ends of joint spare along horizontal direction and locate the upper flange on the third lead to the groove.

The cabinet splicing holes can be self-provided on the cabinet body, and can also be specially arranged for arranging the assembly. The joint spare can set up also can set up in other places of fixed cabinet, for the original structure of make full use of cabinet body, with joint spare joint on the instrument room bottom plate of fixed cabinet.

Furthermore, the abutting plate comprises an abutting part attached to the outer side of the front part of the lateral wall of one side of the movable cabinet far away from the fixed cabinet and a connecting part longitudinally and forwardly extending from the abutting part to the lateral side of the gap of the cabinet body of the movable cabinet; the first through hole is formed in the connecting portion, and the first thrust ball bearing assembly is located on the transverse outer side of the connecting portion.

Furthermore, the transverse two sides above the upper side wall at the rear part of the movable cabinet and the fixed cabinet are respectively fixedly provided with a lifting lug; each lifting lug comprises a vertical bottom plate extending along the longitudinal direction and side plates which are respectively fixed at the front end and the rear end of the bottom plate in the longitudinal direction and extend along the transverse direction and are vertically arranged, the two side plates of each lifting lug extend from the connecting part with the bottom plate to the middle direction of the cabinet body where the lifting lug is positioned, and a third through hole which vertically penetrates through the surfaces of the two transverse sides of the bottom plate is formed in the bottom plate of each lifting lug; the lifting lugs are sequentially arranged along the same extension direction in the transverse direction, and the third through holes of the lifting lugs are coaxially arranged in the transverse direction;

the lower part of the abutting seat of the first rear assembly workpiece is provided with a first through groove, the notch of the first through groove faces downwards and horizontally extends to the side walls of the two longitudinal ends of the abutting seat along the longitudinal direction, and the abutting seat is clamped on the bottom plate of the lifting lug on the side, far away from the fixed cabinet, of the movable cabinet through the first through groove; the connecting seat of the rear assembling workpiece II is clamped between two side plates of the lifting lug of the fixed cabinet, which is close to one side of the movable cabinet; the connecting seat is further fixedly provided with a guide pin which is positioned below the fifth through hole and horizontally extends along the direction of being close to the moving cabinet in the transverse direction on one side of the connecting seat facing the transverse direction of the moving cabinet, the guide pin is arranged in the third through hole of the lifting lug clamped and connected with the connecting seat in a penetrating manner, and the end part of the guide pin extending out of the third through hole is provided with a conical inserting end; when the movable cabinet and the fixed cabinet are spliced in place, the conical inserting end of the guide pin can be inserted into the third through hole of the lifting lug on one side of the movable cabinet close to the fixed cabinet.

The lifting lug can be carried by the cabinet body, and can also be specially and additionally arranged for mounting the device.

Further, first thrust ball bearing subassembly and second thrust ball bearing subassembly all locate including rotating the cover first lead screw or the outer axle sleeve of second lead screw, rotate the cover and locate the outer bearing of axle sleeve, rotate the cover and locate the outer shell of bearing, connect the pin rod between first lead screw or second lead screw and axle sleeve perpendicularly, pin rod one end is equipped with annular outward flange, the other end is equipped with the locking lever of being connected with the perpendicular grafting of pin rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

the device makes full use of the original structure of the cabinet body, so that the device has the advantages of simple structure, convenient assembly, portability, easy carrying, low cost and strong applicability.

The utility model discloses a uide pin makes and can insert when piecing together the cabinet the third through hole of the corresponding lug of removal cabinet in, play the effect of direction, conveniently piece together the cabinet.

The operation performance is good: two cabinet concatenation processes adopt the lead screw transmission structure, wave the rocking handle by hand, can relax and cabinet-combining, simultaneously, can also survey often whether the hole site is centering in the concatenation process, avoid violence cabinet-combining to produce the bad phenomenon that damages the cabinet body.

The commonality is strong, and this patent still can be suitable for when the cabinet body leans on the wall installation.

Drawings

FIG. 1 is a state diagram of a cabinet assembly (front view)

FIG. 2 is a state diagram of a cabinet assembly (Right view)

FIG. 3 is a state diagram of the assembled cabinet (Top view)

Fig. 4 is a schematic view of the structure of the ear hole.

Fig. 5 is a schematic structural view of the stationary cabinet.

FIG. 6 is a schematic view of the front assembled cabinet assembly of the present invention (front view)

FIG. 7 is a schematic view of the front assembled cabinet assembly of the present invention (perspective view)

Fig. 8 is a schematic structural view of the holding member.

FIG. 9 is a schematic view of the structure of the clip member (left view)

FIG. 10 is a schematic view of the structure of the clip member (perspective view)

FIG. 11 is a schematic view of the rear assembled cabinet assembly of the present invention (front view)

FIG. 12 is a structural view of the rear assembled cabinet assembly of the present invention (bottom view)

FIG. 13 is a schematic view of the rear assembled cabinet assembly of the present invention (perspective view)

Fig. 14 is a schematic structural view of the holding seat.

Fig. 15 is a schematic structural view of the connecting socket.

FIG. 16 is a cross-sectional schematic view of a thrust ball bearing assembly.

Fig. 17 is an exploded view of the thrust ball bearing assembly.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples:

example 1

A cabinet splicing device for splicing two cabinets comprises a fixed cabinet 1 with fixed position and a movable cabinet 2 capable of translating relative to the fixed cabinet, wherein the fixed cabinet and the movable cabinet are arranged side by side along the transverse direction,

the cabinet splicing device comprises a front cabinet splicing assembly 3 transversely arranged between the front parts of the two cabinets and a rear cabinet splicing assembly 4 transversely arranged between the rear parts of the two cabinets;

the front assembled cabinet assembly 3 comprises a first screw rod 3-1 horizontally extending along the transverse direction, a first front assembled workpiece 3-2 connected between one transverse side of the first screw rod 3-1 and the front part of the movable cabinet 2, and a second front assembled workpiece 3-3 connected between the other transverse side of the first screw rod 3-1 and the front part of the fixed cabinet 1; the front assembling workpiece I3-2 comprises a supporting plate 3-2-1 fixedly arranged on the movable cabinet 2 and far away from the front outer side of the lateral wall of one transverse side of the fixed cabinet 1 and a first thrust ball bearing assembly 3-2-2 rotatably sleeved on the first screw rod 3-1 and located on one side of the supporting plate 3-2-1 far away from the fixed cabinet 1, a first through hole 3-2-3 used for penetrating the first screw rod 3-1 is formed in the middle of the supporting plate 3-2-1, and the aperture of the first through hole 3-2-3 is larger than the outer diameter of the first screw rod 3-1 and smaller than the outer diameter of the first thrust ball bearing assembly 3-2-2; the second front assembled workpiece 3-3 comprises a clamping piece 3-3-1 which is fixedly arranged at the front part of the fixed cabinet 1, a second through hole 3-3-2 which is used for penetrating the first screw rod 3-1 is arranged on the clamping piece 3-3-1, after the clamping piece 3-3-1 is arranged at the fixed cabinet 1, the second through hole 3-3-2 and the first through hole 3-2-3 are arranged along the transverse direction and coaxially, the periphery of the part of the first screw rod 3-1 which is matched and connected with the second through hole 3-3-2 is provided with an external thread, and the second through hole 3-3-2 is internally provided with an internal thread which is matched and connected with the external thread of the first screw rod 3-1; the first screw rod 3-1 is provided with a first rocking handle 3-4 which is used for driving the first screw rod 3-1 to rotate relative to the first thrust ball bearing component 3-2-2 at the outer end part of the transverse end connected with the first thrust ball bearing component 3-2-2;

the rear assembled cabinet assembly 4 comprises a second screw rod 4-1 horizontally extending along the transverse direction, a first rear assembled workpiece 4-2 connected between one transverse side of the second screw rod 4-1 and the rear part of the movable cabinet 2, and a second rear assembled workpiece 4-3 connected between the other transverse side of the second screw rod 4-1 and the rear part of the fixed cabinet 1; the rear assembled workpiece I4-2 comprises a supporting seat 4-2-1 fixedly arranged at the rear part of the movable cabinet 2 and a second thrust ball bearing assembly 4-2-2 which is rotatably sleeved on the second screw rod 4-1 and is positioned at one side of the supporting seat 4-2-1 far away from the fixed cabinet 1; the middle part of the supporting seat 4-2-1 is provided with a fourth through hole 4-2-3 for penetrating the second screw rod 4-1, and the aperture of the fourth through hole 4-2-3 is larger than the outer diameter of the second screw rod 4-1 and smaller than the outer diameter of the second thrust ball bearing assembly 4-2-2;

the rear assembled workpiece II 4-3 comprises a connecting seat 4-3-1 which is fixedly arranged at the rear part of the fixed cabinet 1, a fifth through hole 4-3-2 which is used for penetrating the second screw rod 4-1 is arranged on the connecting seat 4-3-1, and when the abutting seat 4-2-1 is arranged on the movable cabinet 2 in place and the connecting seat 4-3-1 is arranged on the fixed cabinet 1 in place, the fifth through hole 4-3-2 and the fourth through hole 4-2-3 are arranged coaxially along the transverse direction; the periphery of the part of the second screw rod 4-1, which is matched and connected with the fifth through hole 4-3-2, is provided with an external thread, and an internal thread matched and connected with the external thread of the second screw rod 4-1 is arranged in the fifth through hole 4-3-2; and a second rocking handle 4-4 for driving the second screw rod 4-1 to rotate relative to the second thrust ball bearing assembly 4-2-2 is arranged at the outer end part of the transverse end of the second screw rod 4-1 connected with the second thrust ball bearing assembly 4-2-2.

The principle and the process of the scheme are as follows: when in use, the two cabinets are arranged side by side in the transverse direction, then the abutting plate 3-2-1 of the front assembled cabinet assembly 3 is fixed on the outer side of the transverse side wall of the movable cabinet far away from the fixed cabinet, the clamping piece 3-3-1 is clamped on the fixed cabinet and can be arranged on the instrument room bottom plate 1-2, then the first screw rod 3-1 sequentially penetrates through the first through hole 3-2-3 and the second through hole 3-3-2 of the abutting plate 3-2-1, the abutting seat 4-2-1 of the rear assembled cabinet assembly 4 is fixed on the movable cabinet and can be fixed on the lifting lug 1-1 far away from one side of the fixed cabinet, the connecting seat 4-3-1 is clamped on the fixed cabinet and can be fixed in the lifting lug 1-1 close to one side of the movable cabinet, and then the second screw rod 4-1 sequentially penetrates through the fourth through hole 4-2-3 and the fifth through hole 4-3-2, then simultaneously rotating the two rocking handles to enable the movable cabinet to relatively move towards the fixed cabinet, and finally fixing the movable cabinet and the fixed cabinet together.

The supporting plate 3-2-1 of the front assembled workpiece I3-2 is fixedly arranged on the cabinet assembling hole 2-1 arranged at the front part of the lateral wall of one transverse side of the movable cabinet 2 far away from the fixed cabinet 1 through a connecting hole 3-2-4 arranged on the supporting plate; the clamping piece 3-3-1 of the front assembling workpiece II 3-3 is clamped on an instrument room bottom plate 1-2 of the fixed cabinet 1, the instrument room bottom plate of the fixed cabinet 1 is horizontally arranged in the transverse direction, an upper flange 1-3 protruding upwards and extending horizontally in the transverse direction is arranged on the front side of the instrument room bottom plate, a second through groove 3-3-3 with a groove opening facing backwards and extending to the two transverse ends of the clamping piece 3-3-1 in the transverse direction is arranged on the rear side of the clamping piece 3-3-1, and a third through groove 3-3-4 which is downward in the groove opening and extends to the two transverse ends of the clamping piece 3-3-1 in the transverse direction and is used for clamping and arranging on the upper flange 1-3 is arranged at the bottom of the upper groove wall of the second through groove 3-3-3.

The cabinet splicing holes 2-1 can be self-provided on the cabinet body, and can also be specially arranged for arranging the components. The clamping piece 3-3-1 can be arranged at other places of the fixed cabinet, and in order to fully utilize the original structure of the cabinet body, the clamping piece 3-3-1 is clamped on the instrument room bottom plate 1-2 of the fixed cabinet 1.

The supporting plate 3-2-1 of the embodiment comprises a supporting part 3-2-1-1 attached to the outer side of the front part of the lateral wall of one side of the movable cabinet far away from the fixed cabinet and a connecting part 3-2-1-2 extending forwards from the supporting part along the longitudinal direction to the lateral side of the gap of the cabinet body of the movable cabinet 2; the first through hole 3-2-3 is formed in the connecting portion 3-2-1-2, and the first thrust ball bearing assembly 3-2-2 is located on the lateral outer side of the connecting portion 3-2-1-2.

In the embodiment, two transverse sides above the upper side wall of the rear part of the movable cabinet 2 and the fixed cabinet 1 are respectively and fixedly provided with a lifting lug 1-1; each lifting lug 1-1 comprises a vertically arranged bottom plate 1-1-1 extending along the longitudinal direction and side plates 1-1-2 respectively fixed at the front end and the rear end of the bottom plate 1-1-1 in the longitudinal direction and extending along the transverse direction and vertically arranged, two side plates 1-1-2 of each lifting lug 1-1 extend from the connecting part with the bottom plate 1-1-1 to the middle part of the cabinet body where the lifting lug 1-1 is positioned, and a third through hole 1-1-3 vertically penetrating through the surfaces of two transverse sides of the bottom plate 1-1-1 is arranged on the bottom plate 1-1-1 of each lifting lug 1-1; the lifting lugs 1-1 are sequentially arranged along the same extension direction in the transverse direction, and the third through holes 1-1-3 of the lifting lugs 1-1 are coaxially arranged in the transverse direction;

the lower part of the abutting seat 4-2-1 of the rear assembled workpiece I4-2 is provided with a first through groove 4-2-4 with a notch facing downwards and horizontally extending to the side walls of the two longitudinal ends of the abutting seat 4-2-1 along the longitudinal direction, and the abutting seat 4-2-1 is clamped on the bottom plate 1-1-1 of the lifting lug 1-1 on one side, far away from the fixed cabinet 1, of the movable cabinet 2 through the first through groove 4-2-4; the connecting seat 4-3-1 of the rear assembled workpiece II 4-3 is clamped between two side plates 1-1-2 of the lifting lug 1-1 of the fixed cabinet 1, which is close to one side of the movable cabinet 2; a guide pin 4-3-3 which is positioned below the fifth through hole 4-3-2 and horizontally extends along the direction of being close to the movable cabinet 2 in the transverse direction is further fixed on one side of the connecting seat 4-3-1 facing the transverse direction of the movable cabinet 2, the guide pin 4-3-3 is arranged in the third through hole 1-1-3 of the lifting lug 1-1 clamped by the connecting seat 4-3-1 in a penetrating manner, and a conical inserting end is arranged at the end part of the guide pin 4-3-3 extending out of the third through hole 1-1-3; when the movable cabinet 2 and the fixed cabinet 1 are spliced in place, the conical inserting end of the guide pin 4-3-3 can be inserted into the third through hole 1-1-3 of the lifting lug at one side of the movable cabinet 2 close to the fixed cabinet 1.

The first thrust ball bearing assembly 3-2-2 and the second thrust ball bearing assembly 4-2-2 of this embodiment each include a shaft sleeve 3-2-2-1 rotatably sleeved outside the first lead screw 3-1 or the second lead screw 4-1, a bearing 3-2-2 rotatably sleeved outside the shaft sleeve 3-2-2-1, a housing 3-2-2-3 rotatably sleeved outside the bearing 3-2-2-2, a pin 3-2-2-4 vertically connected between the first lead screw 3-1 or the second lead screw 4-1 and the shaft sleeve 3-2-2-1, one end of the pin 3-2-2-4 being provided with an annular outer flange, the other end is provided with a lock rod 3-2-2-5 which is vertically connected with the pin rod 3-2-2-4 in an inserting way.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Claims

1. The utility model provides a piece together cabinet device for concatenation between two cabinets, one is stationary cabinet (1) of rigidity in two cabinets, and another is for can be relative the removal cabinet (2) of stationary cabinet translation, stationary cabinet and removal cabinet set up its characterized in that along transversely side by side:

the cabinet splicing device comprises a front cabinet splicing assembly (3) transversely arranged between the front parts of the two cabinets and a rear cabinet splicing assembly (4) transversely arranged between the rear parts of the two cabinets;

the front cabinet assembly component (3) comprises a first screw rod (3-1) horizontally extending along the transverse direction, a first front assembly workpiece (3-2) connected between one transverse side of the first screw rod (3-1) and the front part of the movable cabinet (2), and a second front assembly workpiece (3-3) connected between the other transverse side of the first screw rod (3-1) and the front part of the fixed cabinet (1); the front assembled workpiece I (3-2) comprises a supporting plate (3-2-1) fixedly mounted on the movable cabinet (2) and far away from the front outer side of the lateral wall on one side of the fixed cabinet (1) and a first thrust ball bearing assembly (3-2-2) rotatably sleeved on the first screw rod (3-1) and located on one side of the supporting plate (3-2-1) far away from the fixed cabinet (1), a first through hole (3-2-3) used for penetrating the first screw rod (3-1) is formed in the middle of the supporting plate (3-2-1), and the aperture of the first through hole (3-2-3) is larger than the outer diameter of the first screw rod (3-1) and smaller than the outer diameter of the first thrust ball bearing assembly (3-2-2); the front assembled workpiece II (3-3) comprises a clamping piece (3-3-1) which is fixedly arranged at the front part of the fixed cabinet (1), the clamping piece (3-3-1) is provided with a second through hole (3-3-2) for the first screw rod (3-1) to pass through, and after the clamping piece (3-3-1) is installed in place in the fixed cabinet (1), the second through hole (3-3-2) and the first through hole (3-2-3) are arranged along the horizontal direction coaxially, the first screw rod (3-1) is provided with external threads at the periphery of the part where the first screw rod is matched and connected with the second through hole (3-3-2), an internal thread which is matched and connected with the external thread of the first screw rod (3-1) is arranged in the second through hole (3-3-2); the first screw rod (3-1) is provided with a first rocking handle (3-4) which is used for driving the first screw rod (3-1) to rotate relative to the first thrust ball bearing component (3-2-2) at the outer end part of the transverse end connected with the first thrust ball bearing component (3-2-2);

the rear assembled cabinet assembly (4) comprises a second screw rod (4-1) horizontally extending along the transverse direction, a first rear assembled workpiece (4-2) connected between one transverse side of the second screw rod (4-1) and the rear part of the movable cabinet (2), and a second rear assembled workpiece (4-3) connected between the other transverse side of the second screw rod (4-1) and the rear part of the fixed cabinet (1); the rear assembled workpiece I (4-2) comprises a supporting seat (4-2-1) fixedly arranged at the rear part of the movable cabinet (2) and a second thrust ball bearing assembly (4-2-2) which is rotatably sleeved on the second screw rod (4-1) and is positioned at one side of the supporting seat (4-2-1) far away from the fixed cabinet (1); a fourth through hole (4-2-3) for penetrating the second screw rod (4-1) is formed in the middle of the abutting seat (4-2-1), and the aperture of the fourth through hole (4-2-3) is larger than the outer diameter of the second screw rod (4-1) and smaller than the outer diameter of the second thrust ball bearing assembly (4-2-2);

the rear assembled workpiece II (4-3) comprises a connecting seat (4-3-1) fixedly installed at the rear part of the fixed cabinet (1), a fifth through hole (4-3-2) used for penetrating the second screw rod (4-1) is formed in the connecting seat (4-3-1), and when the abutting seat (4-2-1) is installed in place on the movable cabinet (2) and the connecting seat (4-3-1) is installed in place on the fixed cabinet (1), the fifth through hole (4-3-2) and the fourth through hole (4-2-3) are arranged coaxially in the transverse direction; the second screw rod (4-1) is provided with an external thread at the periphery of the part where the second screw rod is matched and connected with the fifth through hole (4-3-2), and an internal thread matched and connected with the external thread of the second screw rod (4-1) is arranged in the fifth through hole (4-3-2); and a second rocking handle (4-4) used for driving the second screw rod (4-1) to rotate relative to the second thrust ball bearing assembly (4-2-2) is arranged at the outer end part of the transverse end of the second screw rod (4-1) connected with the second thrust ball bearing assembly (4-2-2).

2. A cabinet splicing device for splicing two cabinets according to claim 1, wherein: the abutting plate (3-2-1) of the front assembled workpiece I (3-2) is fixedly arranged on the cabinet assembling hole (2-1) arranged at the front part of the lateral wall of one transverse side of the movable cabinet (2) far away from the fixed cabinet (1) through a connecting hole (3-2-4) arranged on the abutting plate; the clamping piece (3-3-1) of the front assembling workpiece II (3-3) is clamped on the instrument room bottom plate (1-2) of the fixed cabinet (1), the instrument room bottom plate of the fixed cabinet (1) is horizontally arranged along the transverse direction, an upper flange (1-3) which protrudes upwards and horizontally extends along the transverse direction is arranged on the front side, a second through groove (3-3-3) with a groove opening facing backwards and extending to the two transverse ends of the clamping piece (3-3-1) along the transverse direction is arranged on the rear side of the clamping piece (3-3-1), the bottom of the upper side groove wall of the second through groove (3-3-3) is provided with a third through groove (3-3-4) which is downward in groove opening and extends to the two transverse ends of the clamping piece (3-3-1) along the transverse direction and is used for clamping the upper flange (1-3).

3. A cabinet splicing device for splicing two cabinets according to claim 2, wherein: the supporting plate (3-2-1) comprises a supporting part (3-2-1-1) attached to the outer side of the front part of the lateral wall of one side of the movable cabinet far away from the fixed cabinet and a connecting part (3-2-1-2) which longitudinally extends forwards to the lateral side of the gap of the cabinet body of the movable cabinet (2); the first through hole (3-2-3) is formed in the connecting portion (3-2-1-2), and the first thrust ball bearing assembly (3-2-2) is located on the transverse outer side of the connecting portion (3-2-1-2).

4. A cabinet splicing device for splicing two cabinets according to claim 1, wherein: lifting lugs (1-1) are respectively fixedly arranged on the two transverse sides above the upper side wall of the rear part of the movable cabinet (2) and the fixed cabinet (1); each lifting lug (1-1) comprises a bottom plate (1-1-1) which is vertically arranged and extends along the longitudinal direction and side plates (1-1-2) which are respectively fixed at the front end and the rear end of the bottom plate (1-1) in the longitudinal direction and extend along the transverse direction and are vertically arranged, two side plates (1-1-2) of each lifting lug (1-1) extend towards the middle direction of the cabinet body where the lifting lug (1-1) is located from the connecting part of the two side plates and the bottom plate (1-1-1), and a third through hole (1-1-3) which vertically penetrates through the surfaces of the two transverse sides of the bottom plate (1-1-1) is formed in the bottom plate (1-1-1) of each lifting lug (1-1); the lifting lugs (1-1) are sequentially arranged along the same extension direction in the transverse direction, and the third through holes (1-1-3) of the lifting lugs (1-1) are coaxially arranged in the transverse direction;

the lower part of the abutting seat (4-2-1) of the first rear assembly workpiece (4-2) is provided with a first through groove (4-2-4) with a downward notch and horizontally extending to the side walls at two longitudinal ends of the abutting seat (4-2-1) along the longitudinal direction, and the abutting seat (4-2-1) is clamped on the bottom plate (1-1-1) of the lifting lug (1-1) on one side, far away from the fixed cabinet (1), of the movable cabinet (2) through the first through groove (4-2-4); the connecting seat (4-3-1) of the rear assembled workpiece II (4-3) is clamped between two side plates (1-1-2) of the lifting lug (1-1) on one side of the fixed cabinet (1) close to the movable cabinet (2); a guide pin (4-3-3) which is positioned below the fifth through hole (4-3-2) and horizontally extends in a direction of being close to the movable cabinet (2) along the transverse direction is further fixed on one transverse side of the connecting seat (4-3-1) facing the movable cabinet (2), the guide pin (4-3-3) is arranged in the third through hole (1-1-3) of the lifting lug (1-1) clamped by the connecting seat (4-3-1) in a penetrating manner, and a conical insertion end is arranged at the end part of the guide pin (4-3-3) extending out of the third through hole (1-1-3); when the movable cabinet (2) and the fixed cabinet (1) are spliced in place, the conical inserting end of the guide pin (4-3-3) can be inserted into the third through hole (1-1-3) of the lifting lug at one side of the movable cabinet (2) close to the fixed cabinet (1).

5. A cabinet splicing device for splicing two cabinets according to any one of claims 1 to 4, wherein: the first thrust ball bearing assembly (3-2-2) and the second thrust ball bearing assembly (4-2-2) respectively comprise a shaft sleeve (3-2-2-1) which is rotatably sleeved outside the first screw rod (3-1) or the second screw rod (4-1), a bearing (3-2-2) which is rotatably sleeved outside the shaft sleeve (3-2-2-1), a shell (3-2-2-3) which is rotatably sleeved outside the bearing (3-2-2-2), and a pin rod (3-2-2-4) which is vertically connected between the first screw rod (3-1) or the second screw rod (4-1) and the shaft sleeve (3-2-2-1), one end of the pin rod (3-2-2-4) is provided with an annular outer flange, and the other end is provided with a lock rod (3-2-2-5) which is vertically connected with the pin rod (3-2-2-4) in an inserting way.