Modular assembled screen

Abstract

This invention relates to the field of screen technology, specifically a modular combined screen. The support members are fixed at both ends to the side walls of the inner cavity of the vibrating screen box; the snap-fit ​​members are fixed to the top surface of the support members; the combined outer frame includes two U-shaped end frames and several side beams, with the side beams connected to the two ends of the U-shaped end frames and adjacent side beams by plug-in joints; the bottom of the combined outer frame is detachably snapped to the snap-fit ​​members; the inner peripheral wall of the top of the combined outer frame has a groove structure; the combined frame includes frame one and frame two arranged longitudinally and snapped together; multiple combined frames are snapped into the groove structure of the inner peripheral wall of the combined outer frame; the top surfaces of frame one and frame two are detachably fitted with multiple mushroom-shaped connectors; the bottom of the screen plate has a T-shaped groove that slides and matches the top of the mushroom-shaped connectors in a horizontal direction; this design effectively solves the problems of inefficient screen installation and high operating costs.

Description

Technical Field

[0001] This invention relates to the field of screen technology, specifically to modular combined screens. Background Technology

[0002] Vibrating screens operate by utilizing the reciprocating rotary vibration generated by a vibrator. The upper rotating weight of the vibrator causes the screen surface to produce planar rotary vibration, while the lower rotating weight causes the screen surface to produce conical rotary vibration. The combined effect of these two forces results in a complex rotary vibration of the screen surface. Currently, vibrating screens are widely used in the mineral processing industry.

[0003] As a key component of screening machines, the screen mainly consists of a support structure and a screening structure. The support structure is fixedly connected to the inner wall of the screen box, while the screening structure is mostly fixed to the support structure using screws or other connectors. Traditionally, the screening structure is often a single, large-sized plate-like structure. This makes screen installation inconvenient and inefficient; furthermore, if any part of the screening structure is damaged, the entire structure needs to be replaced, which is not only labor-intensive but also wasteful, thus increasing operating costs. Summary of the Invention

[0004] The purpose of this invention is to provide a modular combined screen to solve the problems of inefficient installation and high operating costs of existing screens.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a modular combined screen, wherein the two ends of the support member are fixed to the two side walls of the inner cavity of the vibrating screen box; the snap-fit ​​member is fixed to the top surface of the support member; the combined outer frame includes two U-shaped end frames and several side beams, the side beams are connected to the two ends of the U-shaped end frames and to adjacent two side beams by plugging in, the bottom of the combined outer frame is detachably snapped to the snap-fit ​​member, and the inner peripheral wall of the top of the combined outer frame is provided with a groove structure; the combined frame includes frame one and frame two arranged longitudinally and snapped to each other, multiple combined frames are snapped into the groove structure of the inner peripheral wall of the combined outer frame, and multiple mushroom-shaped connectors are detachably sleeved on the top surfaces of frame one and frame two respectively; the bottom of the screen plate is provided with a T-shaped sliding groove that slides and matches the top of the mushroom-shaped connector in the horizontal direction.

[0006] Preferably, the U-shaped end frame includes a U-shaped component and a wedge-shaped strip integrally formed at the bottom of the U-shaped component. The inner peripheral wall of the U-shaped component is provided with a U-shaped groove. The side beam includes a beam body and a wedge-shaped strip integrally formed at the bottom of the beam body. The inner side wall of the beam body is provided with a slot. The two ends of the U-shaped component are inserted and matched with the beam body and two adjacent beam bodies. The wedge-shaped strip one and the wedge-shaped strip two are inserted and matched with each other and two adjacent wedge-shaped strips two. The wedge-shaped strip one and the wedge-shaped strip two are respectively detachably snapped and matched with the top of the snap-fit ​​component.

[0007] Preferably, the two ends of the U-shaped member are respectively provided with a plug 1 and a slot 1, the end face of the wedge strip 1 corresponding to the plug 1 is provided with a slot 2, the end face of the wedge strip 1 corresponding to the slot 1 is provided with a plug 2, the two ends of the beam are respectively provided with a plug 3 and a slot 3, the end face of the wedge strip 2 corresponding to the plug 3 is provided with a slot 4, and the other end face of the wedge strip 2 is provided with a plug 4. The plug 1 and plug 3 are respectively inserted into the corresponding slot 3 and slot 1, and the plug 2 and plug 4 are respectively inserted into the corresponding slot 4 and slot 2.

[0008] Preferably, the support member includes a pair of parallel end plates that are respectively fixed to the inner side wall of the screen box by bolts, and two crossbeams that are respectively vertically fixed to the front and rear ends of the inner side wall of the end plates. The top front and rear sides of the crossbeams are respectively provided with a plurality of screw holes along their axial direction. The snap-fit ​​member includes a strip supported on the top surface of the crossbeam and a T-shaped snap-fit ​​member whose bottom end is fixed to the middle of the top surface of the strip. The top surface of the strip is provided with countersunk holes at positions corresponding to the screw holes. The first wedge and the second wedge are respectively detachably snap-fitted to the top end of the T-shaped snap-fit ​​member.

[0009] Preferably, the top edges of the outer side walls of the first and second wedges are respectively provided with side grooves one and two in the horizontal direction to engage and match the top edge of the T-shaped clip.

[0010] Preferably, one side of the frame body one is provided with a slot one, and one side of the frame body two is provided with a slot two and the other side is provided with a locking head that respectively engages with the slot one and the slot two.

[0011] Preferably, the frame one and frame two are respectively provided with a plurality of threaded sleeves one and two extending vertically along the axial direction. The mushroom-shaped connector includes a mushroom head and a screw rod that is mated to the bottom end of the mushroom head and threadedly engaged with the threaded sleeves one and two. The mushroom head is slidably engaged with the T-shaped groove.

[0012] Preferably, the snap-fit ​​component, U-shaped end frame, side beam, frame one, frame two, and screen plate are all integrally cast from polyurethane.

[0013] Preferably, the first frame and the second frame respectively include a rectangular frame, partitions evenly distributed in the inner cavity of the rectangular frame, and a grid structure disposed between the partitions and between the partitions and the rectangular frame, and the first threaded sleeve and the second threaded sleeve are respectively disposed in the middle of the partition.

[0014] Preferably, the cross-sectional profiles of plug one, plug two, plug three, plug four, slot one, slot two, slot three, and slot four are all oblong.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The modular combined screen of the present invention is easy to assemble from components such as support members, snap-fit ​​members, combined outer frame, combined frame and screen plate. The combined outer frame is composed of multiple U-shaped end frames and side beams, and the combined frame is composed of frame one and frame two. That is, when producing and processing screens, modular and miniaturized production can be achieved, which is convenient for increasing production scale and improving production efficiency.

[0017] 2. The modular combined screen of the present invention is assembled from multiple small parts, which is convenient to assemble and disassemble, easy to operate, and improves the efficiency of screen assembly.

[0018] 3. The modular combined screen of the present invention is assembled from multiple small parts, which facilitates targeted replacement when parts are damaged. This not only improves maintenance efficiency, but also avoids replacing the entire screen, reducing waste and thus lowering the cost of use.

[0019] 4. The modular combined screen structure of the present invention can be flexibly expanded in size, so as to be combined into a vibrating screen adapted to screen boxes of different sizes. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the support member of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the snap-fit ​​component of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the combined outer frame of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the combined frame of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the U-shaped end frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the first three-dimensional structure of the side beam of the present invention;

[0027] Figure 8 This is a schematic diagram of the second three-dimensional structure of the side beam of the present invention;

[0028] Figure 9 This is a three-dimensional structural diagram of the frame of the present invention;

[0029] Figure 10 This is a three-dimensional structural diagram of the second frame of the present invention;

[0030] Figure 11 This is a three-dimensional structural diagram of the mushroom-shaped connector of the present invention;

[0031] Figure 12 This is a three-dimensional structural diagram of the sieve plate of the present invention;

[0032] Figure 13 For the present invention Figure 1 A magnified structural diagram of point A in the middle.

[0033] In the diagram: 1-Support component; 1.1-End plate; 1.2-Crossbeam; 1.2.1-Screw hole;

[0034] 2-Snap-fit ​​component; 2.1-Strip; 2.1.1-Counterhole; 2.2-T-shaped snap-fit ​​component;

[0035] 3-Modular outer frame; 3.1-U-shaped end frame; 3.1.1-U-shaped component; 3.1.2-Wedge strip one; 3.1.3-U-shaped groove; 3.1.4-Side groove one; 3.1.5-Plug one; 3.1.6-Slot one; 3.1.7-Plug two; 3.1.8-Slot two; 3.2-Side beam; 3.2.1-Beam body; 3.2.2-Wedge strip two; 3.2.3-Card slot; 3.2.4-Side groove two; 3.2.5-Plug three; 3.2.6-Slot three; 3.2.7-Plug four; 3.2.8-Slot four;

[0036] 4-Modular frame; 4.1-Frame body one; 4.1.1-Threaded sleeve one; 4.1.2-Slot one; 4.2-Frame body two; 4.2.1-Threaded sleeve two; 4.2.2-Slot two; 4.2.3-Clip head; 4.3-Mushroom-shaped connector; 4.3.1-Mushroom head; 4.3.2-Screw;

[0037] 5-Sieve plate; 5.1-T-shaped chute. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figure 1-13 The present invention provides a technical solution, a modular combined screen, wherein the two ends of the support member 1 are fixed to the two side walls of the inner cavity of the vibrating screen box; wherein, the support member 1 includes a pair of parallel end plates 1.1 that are respectively fixed to the inner side wall of the screen box by bolts, and two crossbeams 1.2 that are respectively vertically fixed to the front and rear ends of the inner side wall of the end plates 1.1. The top front and rear sides of the crossbeams 1.2 are respectively provided with a plurality of screw holes 1.2.1 along their axial direction.

[0040] The snap-fit ​​component 2 includes a strip 2.1 supported on the top surface of the crossbeam 1.2 and a T-shaped snap-fit ​​component 2.2 with its bottom end fixed to the middle of the top surface of the strip 2.1. The top surface of the strip 2.1 is provided with countersunk holes 2.1.1 at positions corresponding to the screw holes 1.2.1. That is, the internal hex bolts installed in the countersunk holes 2.1.1 are threaded into the screw holes 1.2.1 to realize the assembly connection between the snap-fit ​​component and the support component 1.

[0041] The combined outer frame 3 includes two U-shaped end frames 3.1 and several side beams 3.2. The two ends of the side beams 3.2 and the two adjacent side beams 3.2 are connected by plugging. The bottom of the combined outer frame 3 is detachably connected to the snap-fit ​​2. The inner peripheral wall of the top of the combined outer frame 3 is provided with a groove structure. The U-shaped end frame 3.1 includes a U-shaped component 3.1.1 and a wedge-shaped strip 3.1.2 integrally formed at the bottom of the U-shaped component 3.1.1. The inner peripheral wall of the U-shaped component 3.1.1 is provided with a U-shaped groove 3.1.3. The side beam 3.2 includes a beam body 3.2.1 and a wedge-shaped strip 3.2.2 integrally formed at the bottom of the beam body 3.2.1. The inner side wall of the beam body 3.2.1 is provided with a slot 3.2.3. The two ends of the U-shaped component 3.1.1 are respectively provided with a plug 3.1.5 and a slot 3.1.6. The end face of the wedge-shaped strip 3.1.2 corresponding to the plug 3.1.5 is provided with a slot 3.1.8. The end face of the wedge-shaped strip 3.1.2 of the slot 3.1.6 is provided with plug 3.1.7. The two ends of the beam 3.2.1 are respectively provided with plug 3.2.5 and slot 3.2.6. The end face of the wedge-shaped strip 3.2.2 corresponding to plug 3.2.5 is provided with slot 4.2.8 and the other end face of the wedge-shaped strip 3.2.2 is provided with plug 4.2.7. Plug 1 3.1.5 and plug 3 3.2.5 are respectively inserted into the corresponding slot 3 3.2.6 and slot 1 3.1.6. Plug 2 3.1.7 and plug 4 3.2.7 are respectively inserted into the corresponding slot 4 3.2.8 and slot 2 3.1.8. In addition, to facilitate quick insertion and connection between the corresponding plugs and slots, the cross-sectional profiles of plug 1 (3.1.5), plug 2 (3.1.7), plug 3 (3.2.5), plug 4 (3.2.7), slot 1 (3.1.6), slot 2 (3.1.8), slot 3 (3.2.6), and slot 4 (3.2.8) are all oblong.

[0042] Wedge-shaped strip 1 3.1.2 and wedge-shaped strip 2 3.2.2 are respectively detachably snapped into the top of the snap-fit ​​piece 2. The top of the outer side wall of wedge-shaped strip 1 3.1.2 and wedge-shaped strip 2 3.2.2 are respectively provided with side groove 1 3.1.4 and side groove 2 3.2.4 in the horizontal direction to snap into the top of the T-shaped snap-fit ​​piece 2.2.

[0043] The modular frame 4 includes frame 1 4.1 and frame 2 4.2 arranged longitudinally and interlocked with each other. Multiple modular frames 4 are fitted into the groove structure of the inner peripheral wall of the modular outer frame 3. Multiple mushroom-shaped connectors 4.3 are detachably sleeved on the top surface of frame 1 4.1 and frame 2 4.2 respectively. Among them, frame 1 4.1 has a slot 1 4.1.2 on one side, frame 2 4.2.2 has a slot 2 4.2.2 on one side and a locking head 4.2.3 on the other side that interlocks with slot 1 4.1.2 and slot 2 4.2.2 respectively. Frame 1 (4.1) and Frame 2 (4.2) are respectively provided with multiple vertically extending threaded sleeves 4.1.1 and 4.2.1 in the middle portion along the axial direction. The mushroom-shaped connector 4.3 includes a mushroom head 4.3.1 and a screw 4.3.2 that abuts against the bottom end of the mushroom head 4.3.1 and is threadedly engaged with threaded sleeves 4.1.1 and 4.2.1. In addition, Frame 1 (4.1) and Frame 2 (4.2) respectively include a rectangular frame, partitions evenly distributed in the inner cavity of the rectangular frame, and a grid structure disposed between the partitions and between the partitions and the rectangular frame. Threaded sleeves 4.1.1 and 4.2.1 are respectively disposed in the middle of the partitions.

[0044] The bottom of the sieve plate 5 is provided with a T-shaped groove 5.1 that slides and engages with the mushroom head 4.3.1 in the horizontal direction.

[0045] In addition, the snap-fit ​​component 2, the U-shaped end frame 3.1, the side beam 3.2, the frame 1 4.1, the frame 2 4.2, and the screen plate 5 are all integrally cast from polyurethane. Polyurethane has a certain degree of elasticity, which ensures that the wedge strip 1 3.1.2 and the wedge strip 2 3.2.2 can be bent inward at a certain angle at the side groove 1 3.1.4 and the side groove 2 3.2.4, respectively. That is, the side groove 1 3.1.4 and the side groove 2 3.2.4 are not only convenient for snapping with the top of the T-shaped snap-fit ​​component 2.2, but also reduce the thickness at the connection between the wedge strip 1 3.1.2 and the U-shaped component 3.1.1, and between the wedge strip 2 3.2.2 and the beam 3.2.1, so that the wedge strip can be bent at a certain angle at this weak point.

[0046] In summary, when assembling the screen, first use bolts to fix the end plates 1.1 at both ends of the support member 1 to the inner wall of the vibrating screen box. Then, use hex socket head cap screws to fix the strip 2.1 to the crossbeam 1.2 to complete the assembly connection between the snap-fit ​​member 2 and the support member 1.

[0047] The mushroom-shaped connector 4.3 is installed by connecting the screw 4.3.2 with threaded sleeve 4.1.1 and threaded sleeve 4.2.1. The frame 4.2 is then connected to the frame 4.1 using the snap-fit ​​connection between the snap-fit ​​head 4.2.3 and the slot 4.1.2. Multiple frames 4.2 are then sequentially connected to each other using the snap-fit ​​connection between the snap-fit ​​head 4.2.3 and the slot 4.2.2 to form a combined frame 4. Multiple screen plates 5 are then assembled onto the top surface of the combined frame 4 using the snap-fit ​​connection between the T-shaped groove 5.1 and the mushroom head 4.3.1.

[0048] When assembling the modular outer frame 3, first insert multiple side beams 3.2 sequentially into both ends of one of the U-shaped end frames 3.1. At this time, do not seal the modular outer frame 3. Insert the assembly of the screen plate 5 and the modular frame 4 into the slot 3.2.3, and push the assembly of the first screen plate 5 and the modular frame 4 until it engages with the U-shaped groove 3.1.3 of the first U-shaped end frame 3.1. After completing the installation of the assembly of the screen plate 5 and the modular frame 4, install another U-shaped end frame 3.1 to form a screening structure assembly.

[0049] The installation spacing of multiple support components 1 should meet the engagement dimensions of T-shaped clips 2.2 with wedge strips 3.1.2 and 3.2.2. Align the wedge strips 3.1.2 and 3.2.2 at the bottom of the screening structure assembly and snap them into the tops of the two adjacent T-shaped clips 2.2. Continue in this manner until the entire screen is installed.

[0050] When it is necessary to replace components such as screen plate 5, the corresponding screening structure assembly needs to be removed from the T-shaped clamp 2.2. Specifically, the bottom wedge strips 3.1.2 and 3.2.2 are pushed and bent towards the middle at a certain angle, which will lift one end of the screening structure assembly upwards, making it easier to disassemble the entire screening structure assembly. Then, the U-shaped end bracket 3.1 at one end can be removed to take out the corresponding component for replacement.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Modular assembled screen, characterized in that, include: Support member (1), both ends of which are fixed to the two side walls of the inner cavity of the vibrating screen box; A snap-fit ​​component (2) is fixed to the top surface of the support component (1); The combined outer frame (3) includes two U-shaped end frames (3.1) and several side beams (3.2). The two ends of the side beams (3.2) and the two adjacent side beams (3.2) are connected by plugging. The bottom of the combined outer frame (3) is detachably connected to the snap-fit ​​part (2). The inner peripheral wall of the top of the combined outer frame (3) is provided with a groove structure. The combined frame (4) includes frame one (4.1) and frame two (4.2) arranged longitudinally and interlocked with each other. Multiple combined frames (4) are fitted into the groove structure of the inner peripheral wall of the combined outer frame (3). Multiple mushroom-shaped connectors (4.3) are detachably sleeved on the top surfaces of frame one (4.1) and frame two (4.2). The bottom of the sieve plate (5) is provided with a T-shaped groove (5.1) that slides and engages with the top of the mushroom-shaped connector (4.3) in a horizontal direction. The U-shaped end frame (3.1) includes a U-shaped component (3.1.1) and a wedge-shaped strip (3.1.2) integrally formed on the bottom of the U-shaped component (3.1.1). The inner peripheral wall of the U-shaped component (3.1.1) is provided with a U-shaped groove. 3.1.3), the side beam (3.2) includes a beam body (3.2.1) and a wedge-shaped strip (3.2.2) integrally formed at the bottom of the beam body (3.2.1). The inner side wall of the beam body (3.2.1) is provided with a slot (3.2.3). The two ends of the U-shaped piece (3.1.1) are inserted and matched with the beam body (3.2.1) and two adjacent beam bodies (3.2.1). The wedge-shaped strip (3.1.2) and the wedge-shaped strip (3.2.2) are inserted and matched with each other and two adjacent wedge-shaped strips (3.2.2). The wedge-shaped strip (3.1.2) and the wedge-shaped strip (3.2.2) are respectively detachably snapped and matched with the top of the snap-fit ​​piece (2).

2. The modular combination screen of claim 1, wherein: The U-shaped component (3.1.1) has a plug (3.1.5) and a slot (3.1.6) at its two ends respectively. A slot (3.1.8) is provided on the end face of the wedge-shaped strip (3.1.2) corresponding to the plug (3.1.5). A plug (3.1.7) is provided on the end face of the wedge-shaped strip (3.1.2) corresponding to the slot (3.1.6). The beam (3.2.1) has a plug (3.2.5) and a slot (3.2.6) at its two ends respectively. (3.2.5) The end face of the wedge-shaped strip two (3.2.2) is provided with slot four (3.2.8) and the other end face of the wedge-shaped strip two (3.2.2) is provided with plug four (3.2.7). Plug one (3.1.5) and plug three (3.2.5) are respectively inserted into the corresponding slot three (3.2.6) and slot one (3.1.6). Plug two (3.1.7) and plug four (3.2.7) are respectively inserted into the corresponding slot four (3.2.8) and slot two (3.1.8).

3. The modular combined screen according to claim 1, characterized in that: The support member (1) includes a pair of parallel end plates (1.1) fixed to the inner wall of the screen box by bolts, and two crossbeams (1.2) with their ends vertically fixed to the front and rear ends of the inner wall of the end plates (1.1). The crossbeams (1.2) have a plurality of screw holes (1.2.1) along their axial direction on their front and rear sides. The snap-fit ​​member (2) includes a strip (2.1) supported on the top surface of the crossbeams (1.2) and a T-shaped snap-fit ​​member (2.2) with its bottom end fixed to the middle of the top surface of the strip (2.1). The top surface of the strip (2.1) has countersunk holes at positions corresponding to the screw holes (1.2.1). 2.1.1), the first wedge (3.1.2) and the second wedge (3.2.2) are respectively detachably snapped into the top of the T-shaped clip (2.2).

4. The modular combined screen according to claim 3, characterized in that: The top of the outer side wall of wedge strip one (3.1.2) and wedge strip two (3.2.2) are respectively provided with side groove one (3.1.4) and side groove two (3.2.4) in the horizontal direction to engage with the top of the T-shaped clip (2.2).

5. The modular combined screen according to claim 1, characterized in that: The first frame (4.1) has a slot 1 (4.1.2) on one side, and the second frame (4.2) has a slot 2 (4.2.2) on one side and a clip head (4.2.3) on the other side that respectively engages with the slot 1 (4.1.2) and the slot 2 (4.2.2).

6. The modular combined screen according to claim 2, characterized in that: The frame one (4.1) and frame two (4.2) are respectively provided with multiple threaded sleeves extending vertically in the axial direction. 4.1.1) and threaded sleeve two (4.2.1), the mushroom-shaped connector (4.3) includes a mushroom head (4.3.1) and a screw (4.3.2) that is mated to the bottom end of the mushroom head (4.3.1) and threaded sleeve one (4.1.1) and threaded sleeve two (4.2.1) threaded together, the mushroom head (4.3.1) is slidably engaged with the T-shaped groove (5.1).

7. The modular combined screen according to claim 6, characterized in that: The snap-fit ​​component (2), U-shaped end frame (3.1), side beam (3.2), frame one (4.1), frame two (4.2), and screen plate (5) are all integrally cast from polyurethane.

8. The modular combined screen according to claim 6, characterized in that: The first frame (4.1) and the second frame (4.2) respectively include a rectangular frame, partitions evenly arranged in the inner cavity of the rectangular frame, and a grid structure arranged between the partitions and between the partitions and the rectangular frame. The first threaded sleeve (4.1.1) and the second threaded sleeve (4.2.1) are respectively arranged in the middle of the partition.

9. The modular combined screen according to claim 2, characterized in that: The cross-sectional profiles of plug 1 (3.1.5), plug 2 (3.1.7), plug 3 (3.2.5), plug 4 (3.2.7), slot 1 (3.1.6), slot 2 (3.1.8), slot 3 (3.2.6), and slot 4 (3.2.8) are all oblong.

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