Wall-mounted case of maintenance machine

Abstract

The utility model provides a wall-mounted machine case of a maintenance machine. The wall-mounted machine case comprises a machine case body and a supporting frame. Clamping parts protruding outwards are arranged on the two sides of the case body respectively; the supporting frame is of a U-shaped structure composed of two parallel clamping strips and a connecting strip connected between the first ends of the two clamping strips, and clamping grooves are formed in the side faces of the opposite sides of the two clamping strips. The supporting frame is constructed to be fixed to a target wall face in the posture that an opening of the U-shaped structure faces upwards or faces the side face, and the two clamping parts on the two sides of the case body are constructed to be capable of sliding into the corresponding clamping grooves through the bayonets respectively. Based on the technical scheme of the utility model, the case is integrally designed into the case body and the support frame which are independent from each other, and the two parts adopt a detachable assembly mode formed by the clamping grooves and the clamping parts, so that the case body can be assembled and disassembled at any time and without any tool without adopting any fasteners, and the assembly and disassembly are convenient. The operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment chassis, in particular to a wall-mounted chassis for maintenance machinery. Background Art

[0002] Current railway maintenance technology has developed to the stage of large-scale mechanized railway maintenance with cleaning vehicles, ballast vehicles, tamping vehicles, and stabilization vehicles. At the same time, network management of management information such as production scheduling of maintenance operations, monitoring and interaction of on-site production information, and location of work vehicles is gradually being realized. However, some of the current maintenance equipment is not equipped with corresponding electrical components during the early production stage, and it is necessary to install corresponding electrical components later to achieve the upgrading of railway maintenance operation management, that is, it is necessary to install a chassis to accommodate the corresponding electrical components.

[0003] Therefore, for the maintenance equipment currently in use, the first consideration is how to install a chassis within the existing equipment. Since cleaning vehicles, ballast trucks, tamping vehicles, and stabilizers vary in internal installation space and location, and some equipment has very limited internal space, a wall-mounted chassis can be considered to address this space constraint. However, most existing wall-mounted chassis are secured directly with threaded fasteners, such as the prior art with publication number CN220173554U. This makes it inconvenient for workers to operate the actual installation or removal of the chassis. Utility Model Content

[0004] In order to solve the problem of inconvenient installation and disassembly of a wall-mounted chassis for maintenance machinery in the prior art, the utility model proposes a wall-mounted chassis for maintenance machinery.

[0005] In a first aspect, the present invention provides a wall-mounted chassis for maintenance machinery, comprising:

[0006] The chassis body has two sides respectively formed with outwardly protruding clamping portions; and

[0007] The support frame is configured as a U-shaped structure consisting of two parallel clamping strips and a connecting strip connected between the first ends of the two clamping strips, wherein a clamping slot is provided on the side of the two clamping strips facing each other, and one end of the clamping slot extends to the second end of the corresponding clamping strip to form a clamping opening;

[0008] In which, the support frame is constructed to be fixed to the target wall with the opening of the U-shaped structure facing upward or sideways, and the two clamping parts on both sides of the chassis body are constructed to be able to slide into the corresponding clamping slots through the clamping mouth respectively, so that the chassis body enters the area enclosed by the U-shaped structure and abuts against the connecting strip.

[0009] In one embodiment, the clamping strip is configured to have an L-shaped cross-section perpendicular to its length direction, and the clamping slot is configured to be surrounded by the clamping strip and the target wall surface.

[0010] In one embodiment, the clamping strip is provided with a notch communicating with the clamping slot on a portion of the slot wall on a side of the clamping slot away from the target wall, and the clamping portion is configured to be able to enter the clamping slot through the notch in a direction perpendicular to the target wall.

[0011] The clamping portion is further configured to be able to slide along the clamping slot so that the chassis body abuts against the connecting bar while being at least partially offset from the notch.

[0012] In one embodiment, the card strip is provided with a plurality of notches, which are spaced apart along the length direction of the card strip. The card portion includes a plurality of card blocks spaced apart from each other, and each card block can enter the card slot through the corresponding notch.

[0013] In one embodiment, it further includes:

[0014] a locking assembly, which is provided on at least one of the clamping strips, the locking assembly comprising a locking pin partially inserted into the clamping slot in a direction perpendicular to the target wall;

[0015] Wherein, a locking hole is provided on the clamping portion, and the locking pin can move in a direction perpendicular to the target wall surface to be inserted into or withdrawn from the locking hole.

[0016] In one embodiment, the locking assembly further comprises a driving pin, wherein the driving pin is provided through the clamping strip in a direction perpendicular to the target wall surface and an end thereof away from the target wall surface is exposed from the clamping strip;

[0017] The driving pin is connected to the locking pin so as to drive the locking pin to be partially inserted into the locking pin of the slot along a direction perpendicular to the target wall surface when pressed.

[0018] In one embodiment, the driving pin and the locking pin are spaced apart and arranged on the base of the locking assembly, the base is accommodated in the assembly slot and an elastic member is cooperated between the bottom of the assembly slot, and the assembly slot is provided on a side wall of the card slot close to the target wall surface;

[0019] Wherein, the driving pin is configured to compress the elastic member through the base when pressed, so as to drive the locking pin to move along the pressing direction and exit the locking hole.

[0020] In one embodiment, the driving pin and the locking pin are arranged in parallel in an assembly groove constructed in the clamping strip, an elastic member is fitted between the driving pin and the bottom of the assembly groove, and the locking pin passes through the assembly groove into the clamping groove;

[0021] A transmission wheel is provided between the driving pin and the locking pin, and the driving pin is configured to compress the elastic member and drive the transmission wheel when pressed, so as to drive the locking pin to move in a direction opposite to the pressing direction and exit the locking hole through the transmission wheel.

[0022] In one embodiment, the connecting strip is provided with an adjustment groove on the side surface corresponding to the inner side of the U-shaped structure, and the first end of at least one of the two clips is slidably engaged with the adjustment groove, and the locking component is provided on both clips and is completely provided on the clips.

[0023] In one embodiment, the clamping portion is provided on a side surface of the chassis body and close to the back surface of the chassis body;

[0024] The clamping portion is configured to extend toward the outside of the back surface of the chassis body, so as to form a gap between the back surface of the chassis body and the target wall when engaging with the clamping slot.

[0025] The above technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0026] The wall-mounted cabinet for maintenance machinery provided by the present invention has at least the following beneficial effects compared with the prior art:

[0027] The utility model provides a wall-mounted chassis for maintenance machinery, in which the overall chassis is designed to be divided into two independent parts: a chassis body and a support frame. The two parts are assembled in a detachable manner using a card slot and a card connection portion. Therefore, the chassis body does not require any fasteners and can be disassembled and assembled at any time without relying on any tools, making the operation convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0029] Figure 1 It shows a schematic structural diagram of the wall-mounted chassis of the maintenance machine of the present invention in the installed state;

[0030] Figure 2 Shows Figure 1 Exploded view of the structure shown;

[0031] Figure 3 A schematic diagram showing another structure of the wall-mounted cabinet for maintenance machinery of the present invention;

[0032] Figure 4 A schematic structural diagram showing the support frame portion of the wall-mounted chassis of the maintenance machine of the present invention;

[0033] Figure 5 Shows Figure 4 Schematic diagram of the structure of the locking assembly in the shown structure.

[0034] Figure 6 A schematic diagram showing another structure of the support frame of the wall-mounted chassis of the maintenance machine of the present invention;

[0035] Figure 7 Shows Figure 6 Schematic diagram of the structure of the locking assembly in the shown structure.

[0036] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0037] Reference numerals:

[0038] 1-chassis body, 11-clamping part, 111-clamping block, 112-locking hole, 12-handle, 13-heat dissipation hole, 2-support frame, 21-clamping strip, 211-clamping slot, 212-notch, 213-perforation, 22-connecting strip, 221-adjusting slide, 3-locking assembly, 31-locking pin, 32-driving pin, 33-base, 34-elastic member, 35-transmission wheel, 4-target wall, 5-assembly groove. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] An embodiment of the present utility model provides a wall-mounted chassis for maintenance machinery, comprising a chassis body 1 and a support frame 2. The chassis body 1 is provided with outwardly protruding engaging portions 11 on both sides. The support frame 2 is configured as a U-shaped structure consisting of two parallel engaging strips 21 and a connecting strip 22 connecting the first ends of the two engaging strips 21. A slot 211 is provided on the side of each opposing side of the two engaging strips 21, one end of which extends to the second end of the corresponding engaging strip 21 to form a latching opening.

[0041] Among them, the support frame 2 is constructed to be able to be fixed to the target wall 4 with the opening of the U-shaped structure facing upward or sideways, and the two clip-on parts 11 on both sides of the chassis body 1 are constructed to be able to slide into the corresponding clip slots 211 through the clips respectively, so that the chassis body 1 enters the area enclosed by the U-shaped structure and abuts the connecting strip 22.

[0042] Specifically, as shown in the accompanying drawings Figure 1 As shown, the wall-mounted cabinet of the maintenance machine of the present invention mainly comprises two parts, a cabinet body 1 and a support frame 2, which can be detached from each other. The support frame 2 can be fixed to the target wall 4 to be installed by fasteners such as screws. Figure 1 and Figure 2 The support frame 2 includes two parallel clips 21 and a connecting strip 22 connecting the first ends of the two clips 21. The support frame 2 is constructed as a U-shaped structure. The area enclosed by the U-shaped structure corresponds to the installation area of ​​the chassis body 1. A slot 211 is provided on the side of the two clips 21 facing each other (i.e., the side corresponding to the inner side of the U-shaped structure). The slot 211 extends along the length of the clips 21 and forms a slot at the second end of the clips 21 that connects to the outside world. The chassis body 1 is constructed with a snap-on portion 11 on each side that can mate with the slot 211. The snap-on portion 11 protrudes from the side of the chassis body 1. The chassis body 1 is used to mount electrical components and is provided with heat dissipation holes 13 for dissipating heat.

[0043] In actual application, first use fasteners such as screws to fix the support frame 2 on the target wall 4, and it is necessary to make the opening of the U-shaped structure of the support frame 2 (i.e., the opening formed between the second ends of the two clips 21) face upward or to the side. Specifically, it can be facing directly upward or obliquely upward, or horizontally to the side. It can be selected according to the needs of installation. In short, it cannot face downward. After the support frame 2 is fixed, align the clamping parts 11 on both sides of the chassis body 1 with the clamping openings of the card slot 211, so that the clamping parts 11 slide into the card slot 211, so that the chassis body 1 as a whole enters the installation area surrounded by the U-shaped structure. The end of the chassis body 1 abuts the connecting strip 22, indicating that the chassis body 1 is installed in place. During the installation process, it is only necessary to fix the support frame 2 and the target wall 4 with fasteners. The support frame 2 is small in size and light in weight, and it is easy to fix it on the target wall 4. The chassis body 1 does not need to use any other fasteners. When disassembly and maintenance are required, the chassis body 1 only needs to be moved in the reverse direction so that the engaging portion 11 slides out of the engaging slot 211 from the engaging opening, and the chassis body 1 can be removed from the supporting frame 2. To facilitate operation of the chassis body 1, handles 12 are provided on both sides of the chassis body 1 for a person to grasp and lift the chassis body 1.

[0044] Furthermore, the thickness of each portion of the support frame 2 in the direction perpendicular to the target wall 4 is relatively small. Even if the chassis body 1 is no longer in use, the support frame 2 remains on the target wall 4 and substantially does not occupy space in the scene where the target wall 4 is located. For example, in the case of railway maintenance equipment, the target wall 4 may be the wall of the equipment operating room. After the chassis body 1 is disassembled, the support frame 2 can be selectively left on the target wall 4 for later use or other purposes, and substantially does not occupy space in the equipment operating room.

[0045] The wall-mounted chassis for maintenance machinery proposed in the present invention designs the chassis as a whole into two independent parts, a chassis body 1 and a support frame 2. The two parts are assembled in a detachable manner using a card slot 211 and a card connection portion 11. Therefore, for the chassis body 1, it does not require any fasteners and can be disassembled and assembled at any time without relying on any tools, making it easy to operate.

[0046] In one embodiment, the clamping strip 21 is configured to have an L-shaped cross section perpendicular to its length direction, and the clamping slot 211 is configured to be surrounded by the clamping strip 21 and the target wall surface 4 .

[0047] Specifically, as shown in the accompanying drawings Figure 2 As shown, the card slot 211 is composed of a card strip 21 with an L-shaped cross-section and a target plane, that is, the target wall 4 directly serves as the slot wall on one side of the card slot 211. The purpose of this is to further simplify the structure of the card strip 21, that is, to further reduce the thickness of the card strip 21 in the direction perpendicular to the target wall 4 (the thickness of the connecting strip 22 is consistent with that of the card strip 21), to ensure that the support frame 2 as a whole does not occupy too much space in the scene where the target wall 4 is located.

[0048] In one embodiment, the clamping strip 21 is provided with a notch 212 connected to the clamping slot 211 on the portion of the slot wall which is on the side of the clamping slot 211 away from the target wall 4, and the clamping portion 11 is constructed to be able to enter the clamping slot 211 through the notch 212 in a direction perpendicular to the target wall 4; wherein, the clamping portion 11 is also constructed to be able to slide along the clamping slot 211 so that the chassis body 1 abuts against the connecting strip 22 while being at least partially offset from the notch 212.

[0049] Specifically, as shown in the accompanying drawings Figure 3As shown, a notch 212 is provided on the clip strip 21 to provide the clip portion 11 with another way to enter the slot 211 in addition to the slot 211's slot. That is, the clip portion 11 can be directly inserted into the slot 211 perpendicular to the target wall 4 by aligning with the notch 212, thereby reducing the range of movement of the chassis body 1 during assembly and disassembly. In particular, when the slot of the support frame 2 is facing upward, the method of using the clip portion 11 to enter the slot 211 through the notch requires the chassis body 1 to be lifted to a certain height so that the bottom of the clip portion 11 corresponds to the notch. Due to the size and weight of the chassis body 1, this operation is not very convenient. However, using the method of allowing the clip portion 11 to enter the slot 211 through the notch 212, only the chassis body 1 needs to be slightly lifted until the clip portion 11 corresponds to the notch 212, thereby enhancing the convenience of operation.

[0050] Preferably, as shown in the accompanying drawings Figure 3 As shown, a plurality of notches 212 are provided on the card strip 21 , and the plurality of notches 212 are spaced apart along the length direction of the card strip 21 . The clamping portion 11 includes a plurality of spaced-apart clamping blocks 111 , and each clamping block 111 can enter the clamping slot 211 through the corresponding notch 212 .

[0051] In one embodiment, the wall-mounted chassis of the maintenance machinery also includes a locking assembly 3, which is arranged on at least one of the clips 21. The locking assembly 3 includes a locking pin 31 partially inserted into the slot 211 in a direction perpendicular to the target wall 4; wherein a locking hole 112 is provided on the clamping portion 11, and the locking pin 31 can move in a direction perpendicular to the target wall 4 to insert into or exit the locking hole 112.

[0052] Specifically, as shown in the accompanying drawings Figures 1 to 4 As shown, a locking assembly 3 is further provided between the chassis body 1 and the support frame 2. The locking assembly 3 includes a locking pin 31. A portion of the locking pin 31 is located in the slot 211. The locking hole 112 on the clamping portion 11 that fits into the slot 211 can cooperate with the locking pin 31, thereby restricting the clamping portion 11 from being separated from the slot 211. At the same time, the locking pin 31 can release the restriction on the clamping portion 11 by exiting the locking hole 112.

[0053] In one embodiment, the locking assembly 3 also includes a driving pin 32, which is passed through the clamping strip 21 in a direction perpendicular to the target wall 4 and one end of the driving pin 32 away from the target wall 4 is exposed from the clamping strip 21; wherein the driving pin 32 is connected to the locking pin 31 so as to drive the locking pin 31 to be partially inserted into the clamping slot 211 in a direction perpendicular to the target wall 4 when pressed.

[0054] Specifically, as shown in the accompanying drawings Figures 1 to 4As shown, the drive pin 32 of the locking assembly 3 cooperates with the locking pin 31 to drive the locking pin 31 into or out of the locking hole 112. One end of the drive pin 32 extends through the clamping strip 21 and is exposed on the clamping strip 21. The clamping strip 21 has a through hole 213 for the end of the drive pin to pass through. The operator can press the exposed end of the drive pin 32 to drive the locking pin 31 through the drive pin 32.

[0055] In one embodiment, the driving pin 32 and the locking pin 31 are arranged at intervals on the base 33 of the locking assembly 3, and the base 33 is accommodated in the assembly groove 5 and is cooperated with an elastic member 34 between the groove bottom of the assembly groove 5, and the assembly groove 5 is opened on the groove wall on the side of the card groove 211 close to the target wall 4; wherein, the driving pin 32 is constructed to be able to compress the elastic member 34 through the base 33 when pressed, so as to drive the locking pin 31 to move along the pressing direction and exit the locking hole 112.

[0056] Specifically, as shown in the accompanying drawings Figure 4 and Figure 5 As shown, the locking assembly 3 as a whole comprises an elastic member 34, a base 33, a driving pin 32 and a locking pin 31 disposed on the base 33. The driving pin 32 is spaced apart from the locking pin 31, and the locking pin 31 corresponds to the locking slot 211. The driving pin 32 is offset from the locking slot 211 and corresponds to the through-hole 213 on the locking strip 21, which is also offset from the locking slot 211. Based on this embodiment, the locking assembly 3 needs to be matched with a groove in the target wall 4. That is, the locking assembly 3 is entirely disposed in the mounting groove 5 on the target wall 4, and the elastic member 34 is disposed between the base 33 and the bottom of the mounting groove 5.

[0057] In the natural state, under the preload force of the elastic member 34, the base 33, the drive pin 32, and the locking pin 31 tend to move out of the assembly slot 5 as a whole. At this time, the end of the drive pin 32 is exposed to the clamping strip 21 through the through-hole 213, and a portion of the locking pin 31 is inserted into the clamping slot 211 and can cooperate with the locking hole 112 on the clamping portion 11 in the clamping slot 211, thereby establishing a restriction on the clamping portion 11. When the chassis body 1 needs to be disassembled, the end of the drive pin 32 is pressed, so that the base 33, the drive pin 32, and the locking pin 31 are withdrawn into the assembly slot 5 by a certain distance as a whole, thereby causing the portion of the locking pin 31 inserted into the locking hole 112 to exit the locking hole 112, thereby releasing the restriction on the clamping portion 11.

[0058] In one embodiment, the driving pin 32 and the locking pin 31 are arranged in parallel in the assembly groove 5 constructed on the clamping strip 21, and an elastic member 34 is cooperated between the driving pin 32 and the bottom of the assembly groove 5, and the locking pin 31 passes through the assembly groove 5 into the clamping groove 211; wherein, a transmission wheel 35 is arranged between the driving pin 32 and the locking pin 31, and the driving pin 32 is constructed to be able to compress the elastic member 34 and drive the transmission wheel 35 when pressed, so as to drive the locking pin 31 to move in a direction opposite to the pressing direction through the transmission wheel 35 and exit the locking hole 112.

[0059] Specifically, in the previous embodiment, the locking function is achieved by using the locking assembly 3 composed of the elastic member 34, the base 33, the driving pin 32 and the locking pin 31. This requires the formation of an assembly groove 5 on the target wall 4, which may have an adverse effect on the target wall 4 itself. Therefore, this embodiment proposes another locking structure that does not involve the target wall 4. Figure 7 As shown, the locking assembly 3 as a whole includes an elastic member 34, a transmission wheel 35, a drive pin 32 and a locking pin 31. The locking assembly 3 is still arranged in the assembly groove 5, but the assembly groove 5 in this embodiment is opened in the card strip 21 and does not involve any structure on the target wall 4.

[0060] Refer to the attached drawings Figure 7 The drive pin 32 and the locking pin 31 are arranged in parallel and spaced apart in the assembly slot 5, and are connected by a transmission wheel 35, which can be a gear or a friction wheel. The elastic member 34 is arranged between the end of the drive pin 32 and the bottom of the assembly slot 5. Under the preload of the elastic member 34, the drive pin 32 is in a state where it is most exposed from the clamping strip 21. At this time, under the transmission action of the transmission wheel 35, the locking pin 31 is in a state where it is most inserted into the clamping slot 211. When the drive pin 32 is pressed, the drive pin 32 moves toward the target wall 4, while the locking pin 31 moves away from the target wall 4, allowing the locking pin 31 to exit the locking hole 112 of the clamping portion 11.

[0061] In one embodiment, an adjustment groove 221 is provided on the side surface of the connecting strip 22 corresponding to the inner side of the U-shaped structure, and the first end of at least one of the two clips 21 slides in the adjustment groove 221, and both clips 21 are provided with a locking component 3 and the locking component 3 is completely set on the clip 21.

[0062] Specifically, based on the structure in which the locking assembly 3 is completely set with the card strip 21, the card strip 21 itself can be set as an adjustable structure, that is, the bottom of at least one of the card strips 21 of the support frame 2 cooperates with the adjustment slot 221 through a slider, and the width between the two card strips 21 can be adjusted, as shown in the accompanying drawings. Figure 6As shown, it can adapt to chassis of different widths. Based on the adjustable design of the clip 21, both sides of the chassis body 1 need to be connected to the two clips 21 respectively through the locking components 3.

[0063] In one embodiment, the clamping portion 11 is arranged on the side of the chassis body 1 and close to the back of the chassis body 1; wherein, the clamping portion 11 is constructed to extend outward of the back of the chassis body 1 so as to form a gap between the back of the chassis body 1 and the target wall 4 when mating with the card slot 211.

[0064] Specifically, as shown in the accompanying drawings Figure 1 As shown, the clamping portion 11 can be constructed using the back plate on the back of the chassis body 1, that is, the width of the back plate is greater than the width of the main body of the chassis body 1, so that the edges on both sides of the back plate protrude from the side surfaces of the main body of the chassis body 1, thereby forming the clamping portion 11. Furthermore, the structure of the back plate can be further designed, that is, the side edges of the back plate can be set to be first folded inward, and then the edges of the folded portion are turned outward, and the edges of the folded portion are used as the clamping portion 11. In this way, when the clamping portion 11 is matched with the card slot 211, a gap is formed between the back plate and the target wall surface 4, which can be used for heat dissipation from the back of the chassis body 1.

[0065] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0066] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A wall-mounted cabinet for maintenance machinery, characterized in that: include: The chassis body has outwardly protruding clamping parts on both sides; as well as The support frame is configured as a U-shaped structure consisting of two parallel clamping strips and a connecting strip connected between the first ends of the two clamping strips, wherein a clamping slot is provided on the side of the two clamping strips facing each other, and one end of the clamping slot extends to the second end of the corresponding clamping strip to form a clamping opening; In which, the support frame is constructed to be fixed to the target wall with the opening of the U-shaped structure facing upward or sideways, and the two clamping parts on both sides of the chassis body are constructed to be able to slide into the corresponding clamping slots through the clamping mouth respectively, so that the chassis body enters the area enclosed by the U-shaped structure and abuts against the connecting strip.

2. The wall-mounted cabinet for maintenance machinery according to claim 1, characterized in that: The clamping strip is configured such that a cross-section perpendicular to its length direction is L-shaped, and the clamping slot is configured such that it is surrounded by the clamping strip and the target wall surface.

3. The wall-mounted cabinet for maintenance machinery according to claim 1, characterized in that: The card strip is provided with a notch communicating with the card slot on a portion of the slot wall on a side of the card slot away from the target wall, and the engaging portion is configured to be able to enter the card slot through the notch in a direction perpendicular to the target wall; The clamping portion is further configured to be able to slide along the clamping slot so that the chassis body abuts against the connecting bar while being at least partially offset from the notch.

4. The wall-mounted cabinet for maintenance machinery according to claim 3, characterized in that: The card strip is provided with a plurality of notches, which are spaced apart along the length direction of the card strip. The clamping portion includes a plurality of clamping blocks spaced apart from each other, and each clamping block can enter the card slot through the corresponding notch.

5. The wall-mounted cabinet for maintenance machinery according to claim 1, characterized in that: Also includes: a locking assembly, which is provided on at least one of the clamping strips, the locking assembly comprising a locking pin partially inserted into the clamping slot in a direction perpendicular to the target wall; Wherein, a locking hole is provided on the clamping portion, and the locking pin can move in a direction perpendicular to the target wall surface to be inserted into or withdrawn from the locking hole.

6. The wall-mounted cabinet for maintenance machinery according to claim 5, characterized in that: The locking assembly further includes a driving pin, the driving pin being passed through the clamping strip in a direction perpendicular to the target wall surface and having one end thereof away from the target wall surface exposed from the clamping strip; The driving pin is connected to the locking pin so as to drive the locking pin to be partially inserted into the locking pin of the slot along a direction perpendicular to the target wall surface when pressed.

7. The wall-mounted cabinet for maintenance machinery according to claim 6, characterized in that: The driving pin and the locking pin are spaced apart and arranged on the base of the locking assembly. The base is accommodated in the assembly slot and an elastic member is matched between the bottom of the assembly slot. The assembly slot is provided on a side wall of the card slot close to the target wall. Wherein, the driving pin is configured to compress the elastic member through the base when pressed, so as to drive the locking pin to move along the pressing direction and exit the locking hole.

8. The wall-mounted cabinet for maintenance machinery according to claim 6, characterized in that: The driving pin and the locking pin are arranged in parallel in the assembly groove constructed in the clamping strip, an elastic member is matched between the driving pin and the groove bottom of the assembly groove, and the locking pin passes through the assembly groove into the clamping groove; A transmission wheel is provided between the driving pin and the locking pin, and the driving pin is configured to compress the elastic member and drive the transmission wheel when pressed, so as to drive the locking pin to move in a direction opposite to the pressing direction and exit the locking hole through the transmission wheel.

9. The wall-mounted cabinet for maintenance machinery according to claim 5 or 8, characterized in that: The connecting strip is provided with an adjustment slot on the side surface corresponding to the inner side of the U-shaped structure, and the first end of at least one of the two clips is slidably engaged with the adjustment slot, and the locking assembly is provided on both clips and is completely disposed on the clips.

10. The wall-mounted cabinet for maintenance machinery according to claim 1, characterized in that: The clamping portion is arranged on the side of the chassis body and close to the back side of the chassis body; The clamping portion is configured to extend outward from the back side of the chassis body so as to form a gap between the back side of the chassis body and the target wall when engaging with the clamping slot.

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