AGV logistics vehicle

Abstract

The AGV logistics vehicle comprises a chassis, mounting parts and guide wheel assemblies, the chassis comprises a frame, the frame is sequentially provided with a traction assembly, a driving assembly and a directional wheel assembly from the front side to the rear side, the mounting parts are arranged on the side wall of the top of the frame, the guide wheel assemblies are arranged on the mounting parts, and the guide wheel assemblies correspond to the mounting parts one to one; and at least one part of the guide wheel assembly extends out of the frame-shaped frame. A traction assembly, a driving assembly and a directional wheel assembly are arranged on a frame-shaped frame of a chassis to drive and guide the AGV logistics vehicle to stably walk below a goods shelf, a mounting part is arranged on the frame-shaped frame, a guide wheel assembly is arranged on the mounting part, and at least one part of the guide wheel assembly extends out of the frame-shaped frame. Therefore, when the AGV logistics vehicle enters the position below the goods shelf, the advancing direction of the AGV logistics vehicle can be guided, the structure is simple, installation is convenient, the guiding effect is good, and stable operation of the AGV logistics vehicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of material transfer equipment, in particular to an AGV logistics vehicle. Background Art

[0002] With the continuous development of technology, more and more automated equipment is used for production material transfer. AGV, as a kind of equipment for automatic material transportation, has become an indispensable part of factory intelligence and automation. AGV is the abbreviation of "Automated Guided Vehicle", which is an unmanned vehicle with automatic navigation.

[0003] When the existing AGV encounters an uneven ground during driving, one of the dual differential wheels is likely to not touch the ground or the pressure is uneven, resulting in insufficient traction, causing slippage, loss of direction, etc. Utility Model Content

[0004] In view of this, the utility model provides an AGV logistics vehicle.

[0005] The AGV logistics vehicle according to the embodiment of the utility model includes:

[0006] A chassis, the chassis comprising a frame, the frame having a traction assembly, a drive assembly and a directional wheel assembly arranged in sequence from the front side to the rear side;

[0007] At least one mounting portion, at least one of the mounting portions is disposed on a top side wall of the frame;

[0008] At least one guide wheel assembly, at least one of the guide wheel assemblies is disposed on the mounting portion, and the guide wheel assemblies correspond to the mounting portion one by one;

[0009] At least a portion of the guide wheel assembly extends out of the frame.

[0010] Furthermore, each of the guide wheel assemblies includes a guide wheel and a fixing member disposed at the center of the guide wheel, one end of the fixing member is connected to the guide wheel, and the other end is disposed in the mounting hole of the mounting portion.

[0011] Furthermore, it also includes:

[0012] A front bracket, the front bracket is located at the front side of the frame, and the traction assembly is arranged on the front bracket;

[0013] The front bracket is mounted to the side wall of the frame through a connecting piece, and the side edge of the front bracket forms a first clearance groove corresponding to the guide wheel, and at least a part of the guide wheel is arranged in the first clearance groove.

[0014] Furthermore, it also includes:

[0015] A drive mounting plate, on which the drive assembly is mounted;

[0016] The frame forms a cavity near the rear end of the traction assembly, and the side walls of the frame extend into the cavity to form reinforcing ribs, and the drive mounting plate is mounted on the reinforcing ribs.

[0017] Furthermore, the rear side of the frame forms a first mounting platform and a second mounting platform sunk relative to the first mounting platform;

[0018] The directional wheel assembly comprises:

[0019] A battery and a counterweight, wherein the battery and the counterweight are mounted on the first mounting platform;

[0020] A controller, the controller is mounted on the second mounting platform, and the controller is connected to the battery via a wire;

[0021] A directional wheel is connected to the controller and the battery.

[0022] Furthermore, it also includes:

[0023] A rear bracket, the rear bracket is arranged on the rear side of the frame above the second mounting platform, and the wire is stored at the bottom of the rear bracket;

[0024] A second clearance groove corresponding to the guide wheel is formed on the side of the rear bracket, and at least a portion of the guide wheel is arranged in the second clearance groove.

[0025] Furthermore, a cushion block is arranged between the rear bracket and the mounting portion, a first waist-shaped hole is arranged on the cushion block, a second waist-shaped hole is arranged on the rear bracket, and a fastener passes through the second waist-shaped hole and the first waist-shaped hole in sequence and is locked on the mounting portion.

[0026] Furthermore, the chassis also includes:

[0027] A front base, the front base is connected to the front bottom of the frame, and a communication component is arranged on the front base;

[0028] A front shell cover, a part of which is covered on the front base, and another part of which is covered on the front side of the frame;

[0029] A front bumper strip is disposed around the periphery of the front base, and at least a portion of the front bumper strip is exposed outside the front shell cover.

[0030] Furthermore, the chassis also includes:

[0031] A rear base, the rear base is connected to the rear bottom of the frame, and a charging assembly is arranged on the rear base;

[0032] A rear shell cover, a part of which is covered on the rear base, and another part of which is covered on the rear side of the frame;

[0033] A rear bumper strip is disposed around the periphery of the rear base, and at least a portion of the rear bumper strip is exposed outside the rear shell cover.

[0034] Furthermore, a through groove corresponding to the guide wheel is arranged on the front shell cover and / or the rear shell cover, and another part of the guide wheel passes through the through groove and is exposed outside the chassis.

[0035] The above technical solution of the utility model has at least one of the following beneficial effects: the AGV logistics vehicle according to the embodiment of the utility model includes a chassis, at least one mounting portion and at least one guide wheel assembly, the chassis includes a frame, the frame is provided with a traction assembly, a drive assembly and a directional wheel assembly in sequence from the front side to the rear side, at least one mounting portion is provided on the top side wall of the frame, at least one guide wheel assembly is provided on the mounting portion, the guide wheel assembly corresponds to the mounting portion one by one, and at least a part of the guide wheel assembly extends out of the frame. That is to say, a traction assembly, a drive assembly and a directional wheel assembly are provided on the frame of the chassis to drive and guide the AGV logistics vehicle to walk smoothly under the shelf, and a mounting portion is provided on the frame to set the guide wheel assembly on the mounting portion, and at least a part of the guide wheel assembly extends out of the frame, so that when the AGV logistics vehicle enters under the shelf, the traveling direction of the AGV logistics vehicle can be guided, the structure is simple, the installation is convenient, and the guiding effect is good, which ensures the smooth operation of the AGV logistics vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a side view schematic diagram of an AGV logistics vehicle according to an embodiment of the utility model;

[0037] Figure 2 It is a schematic diagram of the partial structure of the lurking traction AGV unmanned vehicle from the first perspective according to an embodiment of the present invention;

[0038] Figure 3 An exploded diagram of a latent traction AGV unmanned vehicle according to an embodiment of the present invention;

[0039] Figure 4 It is a structural schematic diagram of the chassis of the latent traction AGV unmanned vehicle according to an embodiment of the present invention;

[0040] Figure 5 It is a schematic diagram of the partial structure of the latent traction AGV unmanned vehicle from a second perspective according to an embodiment of the present invention;

[0041] Figure 6 It is a schematic structural diagram of the guide wheel assembly and the front bracket of the latent traction AGV unmanned vehicle according to an embodiment of the present invention.

[0042] Reference numerals:

[0043] 100. chassis; 110. frame; 111. mounting portion; 112. cavity; 113. reinforcing rib; 114. first mounting platform; 115. second mounting platform; 116. clearance hole; 120. front bracket; 121. first clearance groove; 122. connecting piece; 130. rear bracket; 131. second clearance groove; 132. second waist-shaped hole; 140. front base; 150. front shell cover; 151. through slot; 160. front anti-collision strip; 170. rear base; 180. rear shell cover; 190. rear anti-collision strip;

[0044] 200. Driver mounting plate;

[0045] 300. Traction assembly; 310. Roller;

[0046] 500. driving assembly; 510. driving wheel;

[0047] 710. Communication component; 720. Charging component;

[0048] 800. directional wheel assembly; 810. battery; 820. counterweight; 830. controller; 840. directional wheel; 850. wire 850;

[0049] 900. Guide wheel assembly; 910. Guide wheel; 920. Fixing member; 930. Cushion block; 931. First waist-shaped hole. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in combination with the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0051] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0052] The following is combined with Figure 1-6 The AGV logistics vehicle of the embodiment of the utility model is specifically described, including a chassis 100, at least one mounting portion 111 and at least one guide wheel assembly 900. The chassis 100 includes a frame 110. The frame 110 is provided with a traction assembly 300, a drive assembly 500 and a directional wheel assembly 800 in sequence from the front to the rear. At least one mounting portion 111 is provided on the top side wall of the frame 110. At least one guide wheel assembly 900 is provided on the mounting portion 111. The guide wheel assembly 900 corresponds to the mounting portion 111 one by one, and at least a portion of the guide wheel assembly 900 extends out of the frame 110. That is to say, a traction assembly 300, a drive assembly 500 and a directional wheel assembly 800 are arranged on the frame 110 of the chassis 100 to drive and guide the AGV logistics vehicle to move smoothly under the shelf, and a mounting portion 111 is arranged on the frame 110 to set the guide wheel assembly 900 on the mounting portion 111, and at least a portion of the guide wheel assembly 900 extends out of the frame 110, so that when the AGV logistics vehicle enters under the shelf, the moving direction of the AGV logistics vehicle can be guided. The structure is simple, easy to install, and has a good guiding effect, thereby ensuring the smooth operation of the AGV logistics vehicle.

[0053] As an embodiment of the present invention, the mounting portion 111 can be, for example, a notch formed around the side wall of the frame 110, and part of the guide wheel assembly 900 is arranged in the notch; the mounting portion 111 can also be, for example, a support plate, one side of the support plate is arranged in the notch, and the other side extends toward the inside of the frame 110. By providing the support plate, the installation strength of the guide wheel assembly 900 can be improved. The number of guide wheel assemblies 900 and mounting portions 111 can be, for example, four, respectively arranged around the frame 110, to further ensure the smooth operation of the AGV logistics vehicle.

[0054] As an embodiment of the present invention, a pair of clearance holes 116 are formed on the side wall of the frame 110, and the driving wheel 510 of the driving assembly 500 is arranged at the corresponding position of the clearance holes 116. In other words, the pair of clearance holes 116 are arranged on the frame 110, which can reduce the weight of the device and the lightweight of the AGV unmanned vehicle. Further, the driving wheel 510 is arranged at the corresponding position of the clearance holes 116, which is convenient for the staff to observe the working state of the driving wheel 510, and then the locking situation of the driving wheel 510 can be observed in time, thereby further improving the working efficiency of the production system.

[0055] Furthermore, each guide wheel assembly 900 includes a guide wheel 910 and a fixing member 920 disposed at the center of the guide wheel 910, one end of the fixing member 920 is connected to the guide wheel 910, and the other end is disposed in the mounting hole of the mounting portion 111. That is, by providing the guide wheel 910, when the AGV logistics vehicle enters under the shelf, the traveling direction of the AGV logistics vehicle can be guided, and the structure is simple, the installation is convenient, and the guiding effect is good.

[0056] Furthermore, the front bracket 120 is also included. The front bracket 120 is located at the front side of the frame 110. The traction assembly 300 is arranged on the front bracket 120. The traction assembly 300 includes a pair of rollers 310. The front bracket 120 is installed to the side wall of the frame 110 through a connecting piece 122. The side of the front bracket 120 forms a first clearance groove 121 corresponding to the guide wheel 910. At least a part of the guide wheel 910 is arranged in the first clearance groove 121. In other words, the front bracket 120 is arranged at the front side of the frame 110. The front bracket 120 is used to install the traction assembly 300. The front bracket 120 is installed on the inner side wall of the frame 110 by using the connecting piece 122. Those skilled in the art can understand that in fact, the two sides of the front bracket 120 can also be directly fixed on the top side wall of the frame 110 by fasteners, and the installation through the connecting piece 122 can improve the strength of the front bracket 120. As an embodiment of the present invention, the connecting member 122 may be, for example, an "L"-shaped member, the first section of which is connected to the bottom of the front bracket 120, and the second section of which is connected to the inner side wall of the frame 110. Meanwhile, considering that the guide wheel assembly 900 is installed on the front side of the frame 110, a first clearance groove 121 may be formed on both sides of the front bracket 120 so that the guide wheel 910 can rotate freely around the fixing member 920. In addition, in order to improve the connection strength between the front bracket 120 and the frame 110, the inner side wall of the frame 110 at the corresponding position of the side of the front bracket 120 may be thickened so that the side of the front bracket 120 is fastened to the frame 110 by fasteners.

[0057] Furthermore, it also includes a drive mounting plate 200, on which a drive assembly 500 is mounted; a cavity 112 is formed on the frame 110 near the rear end of the traction assembly 300, and the side wall of the frame 110 extends into the cavity 112 to form a reinforcing rib 113, and the drive mounting plate 200 is mounted on the reinforcing rib 113. In other words, a cavity 112 is formed on the frame 110 near the rear end of the traction assembly 300, and the side wall of the frame 110 extends into the cavity 112 to form a reinforcing rib 113, and the drive mounting plate 200 is mounted on the reinforcing rib 113, and the drive assembly 500 is arranged on the drive mounting plate 200. By forming the reinforcing rib 113 extending inward, the mechanical strength of the chassis 100 can be improved on the one hand, and a platform can be provided for the installation of the drive assembly 500 and the drive mounting plate 200 on the other hand.

[0058] Furthermore, the rear side of the frame 110 forms a first mounting platform 114 and a second mounting platform 115 that is sunken relative to the first mounting platform 114; the directional wheel assembly 800 includes a battery 810 and a counterweight block 820, a controller 830, and a directional wheel 840, the battery 810 and the counterweight block 820 are installed on the first mounting platform 114, the controller 830 is installed on the second mounting platform 115, the controller 830 is connected to the battery 810 via a wire 850, and the directional wheel 840 is connected to the controller 830 and the battery 810. That is, a first mounting platform 114 is formed on the rear side of the frame 110 to mount the battery 810 and the counterweight 820, and a second mounting platform 115 is formed on the rear side of the frame 110 to mount the controller 830. The battery 810 is used to supply power to the controller 830 and the directional wheel 840 of the directional wheel assembly 800; the counterweight 820 is used to balance the weight of the front and rear sides of the frame 110 to maintain the stability of the AGV logistics vehicle; and the controller 830 is used to control the start, stop and direction of the directional wheel 840. By sequentially forming the first mounting platform 114 and the second mounting platform 115 on the rear side of the frame 110, the convenience of installing the directional wheel assembly 800 can be improved.

[0059] Furthermore, the rear bracket 130 is further included. The rear bracket 130 is arranged at the rear side of the frame 110 above the second mounting platform 115. The wire 850 is stored at the bottom of the rear bracket 130. A second clearance groove 131 corresponding to the guide wheel 910 is formed on the side of the rear bracket 130. At least a part of the guide wheel 910 is arranged in the second clearance groove 131. In other words, the rear bracket 130 is arranged at the rear side of the frame 110. The rear bracket 130 is used to store the wire 850. The wire 850 can be used to connect the battery 810 with the controller 830 to power the controller 830, and can also be used to connect the battery 810 with the guide wheel 910 to drive the operation of the guide wheel 910, and can also connect the controller 830 with the guide wheel 910 to transmit signals. Considering that the guide wheel assembly 900 may also be installed on the rear side of the frame 110, a second clearance groove 131 may be formed on the two side edges of the rear bracket 130 so that the guide wheel 910 can rotate freely around the fixing member 920. In addition, in order to improve the connection strength between the rear bracket 130 and the frame 110, the inner side wall of the frame 110 at the corresponding position of the side edge of the rear bracket 130 may be thickened so that the side edge of the rear bracket 130 is fastened to the frame 110 by fasteners.

[0060] Further, a cushion block 930 is provided between the rear bracket 130 and the mounting portion 111, a first waist-shaped hole 931 is provided on the cushion block 930, and a second waist-shaped hole 132 is provided on the rear bracket 130, and a fastener passes through the second waist-shaped hole 132 and the first waist-shaped hole 931 in sequence and is locked on the mounting portion 111. In other words, in order to improve the connection strength between the rear bracket 130 and the mounting portion 111, a cushion block 930 can be further provided so that the rear bracket 130 is reliably connected to the frame 110 of the chassis 100. At the same time, by providing waist-shaped holes on the cushion block 930 and the rear bracket 130, the relative positions of the rear bracket 130 and the cushion block 930 can be flexibly adjusted, so as to further improve the convenience of installing the rear bracket 130, the cushion block 930 and the frame 110.

[0061] Furthermore, the chassis 100 further includes a front base 140, a front shell cover 150 and a front bumper strip 160. The front base 140 is connected to the front bottom of the frame 110. The communication component 710 is arranged on the front base 140. A part of the front shell cover 150 is covered on the front base 140, and another part is covered on the front side of the frame 110. The front bumper strip 160 is arranged around the periphery of the front base 140, and at least a part of the front bumper strip 160 is exposed outside the front shell cover 150. In other words, the front base 140 is also arranged on the front side of the chassis 100, and the front base 140 is used to install the communication component 710. Correspondingly, the front side of the chassis 100 is partially covered with the front shell cover 150 to protect the components on the front side of the chassis 100. Taking into account the possibility of slipping and losing direction when the AGV logistics vehicle walks on uneven ground, a front anti-collision strip 160 is arranged around the circumference of the front base 140. The front anti-collision strip 160 is made of elastic material, so as to cushion the AGV logistics vehicle that slips or loses direction, thereby preventing the AGV logistics vehicle from colliding with hard objects and causing damage.

[0062] Furthermore, the chassis 100 further includes a rear base 170, a rear shell cover 180 and a rear bumper strip 190. The rear base 170 is connected to the rear bottom of the frame 110. The charging assembly 720 is arranged on the rear base 170. A portion of the rear shell cover 180 is covered on the rear base 170, and another portion is covered on the rear side of the frame 110. The rear bumper strip 190 is arranged around the periphery of the rear base 170, and at least a portion of the rear bumper strip 190 is exposed outside the rear shell cover 180. In other words, a rear base 170 is also arranged on the rear side of the chassis 100, and the rear base 170 is used to install the charging assembly 720. Correspondingly, the rear side of the chassis 100 is partially covered with the rear shell cover 180 to protect the components on the rear side of the chassis 100. Taking into account the possibility of slipping and losing direction when the AGV logistics vehicle walks on uneven ground, a rear anti-collision strip 190 is arranged around the circumference of the rear base 170. The rear anti-collision strip 190 is made of elastic material, so as to cushion the AGV logistics vehicle that slips or loses direction, thereby preventing the AGV logistics vehicle from colliding with hard objects and causing damage.

[0063] Furthermore, a through slot 151 corresponding to the guide wheel 910 is provided on the front housing cover 150 and / or the rear housing cover 180, and another part of the guide wheel 910 passes through the through slot 151 and is exposed outside the chassis 100. In other words, considering that the guide wheel 910 exposed outside the chassis 100 needs to rotate freely to realize its guiding function, it is necessary to correspondingly provide a through slot 151 at a corresponding position of the front housing cover 150 and / or the rear housing cover 180 where the guide wheel 910 is installed, so as to ensure that the guide wheel 910 is exposed outside the chassis 100.

[0064] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An AGV logistics vehicle, characterized in that: include: A chassis (100), the chassis (100) comprising a frame (110), the frame (110) being provided with a traction assembly (300), a drive assembly (500) and a directional wheel assembly (800) in sequence from the front side to the rear side; At least one mounting portion (111), at least one mounting portion (111) being disposed on a top side wall of the frame (110); At least one guide wheel assembly (900), at least one of the guide wheel assemblies (900) is arranged on the mounting portion (111), the guide wheel assembly (900) corresponds to the mounting portion (111) one by one, and at least a portion of the guide wheel assembly (900) extends out of the frame (110).

2. The AGV logistics vehicle according to claim 1, characterized in that: Each guide wheel assembly (900) comprises a guide wheel (910) and a fixing member (920) arranged at the center of the guide wheel (910); one end of the fixing member (920) is connected to the guide wheel (910), and the other end is arranged in the mounting hole of the mounting portion (111).

3. The AGV logistics vehicle according to claim 2, characterized in that: Also includes: A front bracket (120), the front bracket (120) being located at the front side of the frame (110), and the traction assembly (300) being arranged on the front bracket (120); The front bracket (120) is mounted to the side wall of the frame (110) via a connecting piece (122); a first clearance groove (121) corresponding to the guide wheel (910) is formed on the side of the front bracket (120); and at least a portion of the guide wheel (910) is disposed in the first clearance groove (121).

4. The AGV logistics vehicle according to claim 1, characterized in that: Also includes: A drive mounting plate (200), on which the drive assembly (500) is mounted; The frame (110) forms a cavity (112) near the rear end of the traction assembly (300), and the side wall of the frame (110) extends into the cavity (112) to form a reinforcing rib (113), and the drive mounting plate (200) is mounted on the reinforcing rib (113).

5. The AGV logistics vehicle according to claim 2, characterized in that: The rear side of the frame (110) forms a first mounting platform (114) and a second mounting platform (115) that is sunken relative to the first mounting platform (114); The directional wheel assembly (800) comprises: A battery (810) and a counterweight (820), wherein the battery (810) and the counterweight (820) are installed on the first installation platform (114); A controller (830), the controller (830) being mounted on the second mounting platform (115), the controller (830) being connected to the battery (810) via a wire (850); A directional wheel (840), wherein the directional wheel (840) is connected to the controller (830) and the battery (810).

6. The AGV logistics vehicle according to claim 5, characterized in that: Also includes: A rear bracket (130), the rear bracket (130) being arranged on the rear side of the frame (110) above the second mounting platform (115), the wire (850) being stored at the bottom of the rear bracket (130); A second clearance groove (131) corresponding to the guide wheel (910) is formed on the side of the rear bracket (130), and at least a portion of the guide wheel (910) is arranged in the second clearance groove (131).

7. The AGV logistics vehicle according to claim 6, characterized in that: A cushion block (930) is arranged between the rear bracket (130) and the mounting portion (111), a first waist-shaped hole (931) is arranged on the cushion block (930), and a second waist-shaped hole (132) is arranged on the rear bracket (130), and a fastener passes through the second waist-shaped hole (132) and the first waist-shaped hole (931) in sequence and is locked on the mounting portion (111).

8. The AGV logistics vehicle according to claim 2, characterized in that: The chassis (100) further comprises: A front base (140), the front base (140) being connected to the front bottom of the frame (110), and a communication component (710) being arranged on the front base (140); A front shell cover (150), a portion of which is disposed on the front base (140) and another portion of which is disposed on the front side of the frame (110); A front anti-collision strip (160) is arranged around the outer periphery of the front base (140), and at least a portion of the front anti-collision strip (160) is exposed outside the front shell cover (150).

9. The AGV logistics vehicle according to claim 8, characterized in that: The chassis (100) further comprises: A rear base (170), the rear base (170) being connected to the rear bottom of the frame (110), and a charging assembly (720) being arranged on the rear base (170); A rear shell cover (180), wherein a portion of the rear shell cover (180) is disposed on the rear base (170), and another portion of the rear shell cover (180) is disposed on the rear side of the frame (110); A rear bumper strip (190) is disposed around the outer periphery of the rear base (170), and at least a portion of the rear bumper strip (190) is exposed outside the rear shell cover (180).

10. The AGV logistics vehicle according to claim 9, characterized in that: A through slot (151) corresponding to the guide wheel (910) is provided on the front shell cover (150) and / or the rear shell cover (180), and another part of the guide wheel (910) passes through the through slot (151) and is exposed outside the chassis (100).

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