Flexible paving device for solar photovoltaic module
By designing a flexible paving device for photovoltaic modules including mounting frame, suspension cable, support frame and installation mechanism, the problem of low paving efficiency of photovoltaic modules in the prior art is solved, automatic positioning and fixing of photovoltaic modules is realized, and paving efficiency is improved.
Patent Information
- Application Number
- CN202411717912.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the flexible paving process of existing photovoltaic modules, at least two staff members are required to assist in fixing, resulting in low paving efficiency.
A flexible paving device including a mounting frame, a suspension cable, a support frame and a mounting mechanism is designed. The installation mechanism can automatically position and fix the photovoltaic components through the combination of screws, guide rods, threaded blocks, connecting rods and mobile seats, reducing manual assisted fixation.
Automatic positioning and fixing of photovoltaic modules is realized, reducing the operating steps of staff, and improving the paving efficiency of photovoltaic modules.
Smart Images

Figure CN119628518A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of flexible paving equipment for photovoltaic components, and in particular to a flexible paving device for solar photovoltaic components. Background Art
[0002] As one of the main ways to utilize solar energy, photovoltaic power generation has been continuously improving in terms of technology level and application scale, providing a broad market space and application prospects for the flexible installation of solar photovoltaic modules.
[0003] At present, in the flexible paving process of existing photovoltaic modules, it is necessary to first fix the mounting frame, then install the workpiece for fixing the suspension cable on the top of the mounting frame, then fix the suspension cable, and then place the photovoltaic module on the suspension cable. After placing the photovoltaic module, it is necessary to adjust the position of the photovoltaic module and then fix the photovoltaic module. The existing photovoltaic module fixing mechanism generally fixes the solar photovoltaic module through bolts, fixing buckles and other workpieces. However, this method requires at least two workers to construct when used. One worker assists in fixing the solar photovoltaic module after it is placed stably, so that the other worker can fix the photovoltaic module to ensure the stability of the photovoltaic module. The paving efficiency is not high. In view of this, we propose a flexible paving device for solar photovoltaic modules. Summary of the invention
[0004] The main purpose of the present invention is to provide a solar photovoltaic assembly flexible paving device, which can solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention proposes a flexible paving device for solar photovoltaic components, comprising a mounting frame, a fixing seat is fixedly connected to the top of the mounting frame, a suspension cable is fixedly connected to the inside of the fixing seat, a photovoltaic component body is arranged on the suspension cable, a support frame is arranged below the suspension cable, and a mounting mechanism is arranged on the lower side of the photovoltaic component body, and the mounting mechanism comprises:
[0006] A mounting plate, the mounting plate being fixedly connected to the lower side of the photovoltaic module body, the lower side of the mounting plate being rotatably connected to a screw rod, and the lower side of the mounting plate being fixedly connected to a guide rod;
[0007] A threaded block, wherein the threaded block is threadedly connected to the screw rod, a connecting rod is hinged on the outer wall of the threaded block, and a movable seat is hinged on one end of the connecting rod away from the threaded block. Through the rotation of the screw rod, the threaded block can be driven to slide stably under the action of the guide rod, thereby driving the connecting rod to move, so that the movable seat can move, and the movable seat can be moved to contact with the suspension cable, and a certain extrusion force is applied to the suspension cable, so that the photovoltaic module body can be positioned and fixed, which is convenient for subsequent staff to fix the photovoltaic module body, and does not require staff to perform auxiliary fixation on the photovoltaic module body, thereby improving the paving efficiency of solar photovoltaic modules;
[0008] A limit assembly, wherein the limit assembly is arranged on the mobile seat, and the use of the limit assembly can ensure that the solar photovoltaic assembly is stably installed after being installed and fixed;
[0009] And a fixing component, wherein the fixing component is arranged on the mobile seat, and the use of the fixing component can further improve the stability of the installation of the solar photovoltaic component.
[0010] Preferably, a guide rail is fixedly connected to the lower side of the mounting plate, the guide rail is slidably connected to the movable seat, the threaded block is penetrated by a guide rod and is slidably connected to the guide rod, and through the use of the guide rail, the movable seat maintains stable movement when sliding.
[0011] Preferably, a bidirectional screw is rotatably connected in the recess of the movable seat, and the bidirectional screw is threadedly connected to a movable block, and the movable block is slidably connected in the recess of the movable seat. The movable block is moved by rotating the bidirectional screw, thereby adjusting the position of the fixed component to facilitate subsequent fixation of the suspension cable.
[0012] Preferably, the limit assembly includes a rotating shaft, which is fixedly connected to the bidirectional screw rod, and a square groove is opened at the lower end of the rotating shaft. A square rod is slidably connected in the square groove, and the square rod and the square groove are elastically connected by a return spring. Through the use of the square rod and the square groove, the square rod can drive the rotating shaft to rotate when it rotates.
[0013] Preferably, the lower end of the square rod is rotatably connected to a rotating rod, the rotating rod passes through gear ring one and is fixedly connected to gear ring one, the rotating rod passes through a fixed sleeve and is slidably connected to the fixed sleeve, gear ring one is meshed with gear ring two, and through the meshing of gear ring one and gear ring two, the rotating rod can be limited and fixed to prevent the rotating rod from rotating, and when gear ring one is separated from gear ring two, the rotating rod can rotate.
[0014] Preferably, the second gear ring is fixedly connected to the inner wall of the fixing sleeve, and the fixing sleeve is fixedly connected to the outer wall of the movable seat, and the second gear ring is penetrated by the rotating rod and is rotatably connected to the rotating rod. By pressing the rotating handle of the rotating rod, the gear ring one is disengaged from the second gear ring, and then the limiting fixation of the gear ring one is released, and then the rotating handle of the rotating rod is rotated to drive the rotating rod to rotate, and then the square rod is driven to rotate. Under the limiting action of the square groove on the square rod, the rotating shaft drives the two-way screw rod to rotate, and then the fixing clamp fixes the suspension cable, so as to achieve the effect of fixing the photovoltaic component body. After the staff releases the rotating rod, under the resetting action of the resetting spring, the square rod moves and resets, and then the rotating rod moves and resets, and the gear ring one re-engages with the gear ring two to achieve the limiting fixation of the rotating rod, and then the rotating shaft is limited and fixed, so that the photovoltaic component body can maintain a stable fixed state.
[0015] Preferably, the fixing assembly includes a fixing clamp, which is fixedly connected to the outer wall of the moving block, the fixing clamp is penetrated by the vertical rod and slidably connected to the vertical rod, the bottom of the vertical rod is fixedly connected to a pad, the top of the vertical rod is hinged with a hinged rod, the end of the hinged rod away from the vertical rod is hinged with an inclined rod, and the end of the inclined rod away from the hinged rod is hinged with a pressure block, and the moving block is moved by rotating the two-way screw rod, which can drive the fixing clamp to clamp and fix the suspension cable. During this process, the pad is squeezed, driving the vertical rod to move upward, and then driving the hinged rod to move, causing the inclined rod to rotate, driving the pressure block to further press the suspension cable, thereby improving the fixing effect of the photovoltaic component body.
[0016] Preferably, the oblique rod is rotationally connected to the positioning rod via a torsion spring. Through the use of the torsion spring, after the oblique rod rotates to compress the torsion spring, the oblique rod can be reset under the action of the torsion spring.
[0017] Preferably, a plurality of groups of stripes are arranged on the inner surface of the fixing clamp, and the fixing clamp matches the suspension cable. The plurality of groups of stripes on the inner surface of the fixing clamp can improve the friction force of the fixing clamp when clamping and fixing the suspension cable.
[0018] Preferably, the inner surface of a side of the movable seat close to the fixing clamp and a side of the fixing clamp close to the movable block are in the same vertical plane.
[0019] The present invention provides a flexible paving device for solar photovoltaic modules, which has the following beneficial effects:
[0020] (1) The flexible installation device for solar photovoltaic modules uses an installation mechanism. By rotating the screw rod, the threaded block can be driven to slide stably under the action of the guide rod, and the connecting rod can be driven to move so that the movable seat can move, and then the movable seat can move to contact the suspension cable and exert a certain squeezing force on the suspension cable, so that the photovoltaic module body can be positioned and fixed, which is convenient for subsequent staff to fix the photovoltaic module body. There is no need for staff to assist in fixing the photovoltaic module body, thereby improving the installation efficiency of solar photovoltaic modules.
[0021] (2) The flexible paving device of the solar photovoltaic module uses a fixed component and rotates a bidirectional screw to move the moving block so that the fixing clamp clamps the suspension cable. During this process, the cushion block is squeezed, driving the vertical rod to move upward, thereby driving the hinged rod to move, causing the inclined rod to rotate, driving the pressure block to further press the suspension cable, thereby improving the fixing effect of the photovoltaic module body.
[0022] (3) The flexible paving device for solar photovoltaic modules uses a limit assembly. Under the meshing action of the tooth ring 1 and the tooth ring 2, the rotating rod can be limited and fixed, thereby ensuring the stability of the position of the fixing clamp and further ensuring the fixing effect of the photovoltaic module body. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 The overall three-dimensional structure of the present invention is shown in FIG. Figure 1 ;
[0025] Figure 2 The overall three-dimensional structure of the present invention is shown in FIG. Figure 2 ;
[0026] Figure 3 It is a schematic diagram of the structure of the photovoltaic module body and the installation mechanism of the present invention;
[0027] Figure 4 It is a partial structural schematic diagram of the installation mechanism of the present invention;
[0028] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the mounting mechanism of the present invention;
[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the limit assembly of the present invention;
[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the fixing assembly of the present invention;
[0031] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the present invention.
[0032] Description of Figure Numbers:
[0033] 1. Mounting frame; 2. Fixed seat; 3. Suspension cable; 4. Support frame; 5. PV panel body; 6. Mounting mechanism; 61. Mounting plate; 62. Screw; 63. Guide rod; 64. Threaded block; 65. Connecting rod; 66. Moving seat; 67. Guide rail; 68. Limiting assembly; 69. Fixed assembly; 661. Bidirectional screw; 662. Moving block; 681. Rotating shaft; 682. Square groove; 683. Square rod; 684. Rotating rod; 685. Gear ring one; 686. Gear ring two; 687. Fixed sleeve; 691. Fixed clamp; 692. Vertical rod; 693. Cushion block; 694. Articulated rod; 695. Diagonal rod; 696. Positioning rod; 697. Press block.
[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0036] See also Figure 1-Figure 8 The present invention proposes a flexible paving device for solar photovoltaic components, including a mounting frame 1, a fixing seat 2 is fixedly connected to the top of the mounting frame 1, a suspension cable 3 is fixedly connected to the inside of the fixing seat 2, a photovoltaic component body 5 is arranged on the suspension cable 3, and a support frame 4 is arranged below the suspension cable 3. By using the support frame 4, the suspension cable 3 can be supported to strengthen the supporting effect of the photovoltaic component body 5. A mounting mechanism 6 is arranged on the lower side of the photovoltaic component body 5. By using the mounting mechanism 6, the photovoltaic component body 5 can be positioned first when being fixed, and there is no need for staff to assist in fixing the photovoltaic component body 5, thereby improving the paving efficiency of the solar photovoltaic components.
[0037] In the embodiment of the present invention, in order to be able to position the photovoltaic module body 5, it is convenient for subsequent staff to fix and install the photovoltaic module body 5, and improve the installation efficiency of the solar photovoltaic module, specifically, the installation mechanism 6 includes a mounting plate 61, a threaded block 64, a limit assembly 68 and a fixing assembly 69. The mounting plate 61 is fixedly connected to the lower side of the photovoltaic module body 5, and the lower side of the mounting plate 61 is rotatably connected to the screw 62, and the lower side of the mounting plate 61 is fixedly connected to the guide rod 63. The threaded block 64 is threadedly connected to the screw 62, and a connecting rod 65 is hinged on the outer wall of the threaded block 64. The end of the connecting rod 65 away from the threaded block 64 is hinged to a movable seat 66, the limit assembly 68 is arranged on the movable seat 66, the fixing assembly 69 is arranged on the movable seat 66, and the mounting plate A guide rail 67 is fixedly connected to the lower side of 61, and the guide rail 67 is slidably connected to the moving seat 66. The threaded block 64 is penetrated by the guide rod 63 and is slidably connected to the guide rod 63. Through the use of the guide rail 67, the moving seat 66 can maintain stable movement when sliding. By rotating the screw 62, under the action of the guide rod 63, the threaded block 64 can be driven to slide stably, driving the connecting rod 65 to move, so that the moving seat 66 can move, and then the moving seat 66 can be moved to contact with the suspension cable 3 and apply a certain extrusion force to the suspension cable 3, so that the photovoltaic module body 5 can be positioned and fixed, which is convenient for subsequent staff to fix the photovoltaic module body 5, and there is no need for staff to assist in fixing the photovoltaic module body 5, thereby improving the installation efficiency of solar photovoltaic modules.
[0038] Furthermore, in order to be able to fix the photovoltaic module body 5, specifically, a bidirectional screw rod 661 is rotatably connected in the recess of the movable seat 66, and the bidirectional screw rod 661 is threadedly connected to a movable block 662, and the movable block 662 is slidably connected in the recess of the movable seat 66. The fixing component 69 includes a fixing clamp 691, and the inner surface of the side of the movable seat 66 close to the fixing clamp 691 and the inner surface of the side of the fixing clamp 691 close to the movable block 662 are in the same vertical plane, and a plurality of groups of stripes are arranged on the inner surface of the fixing clamp 691. The plurality of groups of stripes on the inner surface of the fixing clamp 691 can improve the friction force of the fixing clamp 691 when clamping and fixing the suspension cable 3. The fixing clamp 691 matches the suspension cable 3, and the rotation of the bidirectional screw rod 661 can drive the movable block 662 to slide stably in the recess of the movable seat 66, so that the fixing clamp 691 clamps the suspension cable 3, thereby fixing the photovoltaic module body 5.
[0039] In the embodiment of the present invention, in order to ensure that the photovoltaic module body 5 is stably fixed, specifically, the limiting assembly 68 includes a rotating shaft 681, which is fixedly connected to the bidirectional screw rod 661, and a square groove 682 is provided at the lower end of the rotating shaft 681. A square rod 683 is slidably connected in the square groove 682. The square rod 683 is elastically connected to the square groove 682 through a reset spring. The lower end of the square rod 683 is rotatably connected to a rotating rod 684, and the rotating rod 684 passes through a gear ring 1 685 and is fixedly connected to the gear ring 1 685. The rotating rod 684 passes through a fixed sleeve 687 and is slidably connected to the fixed sleeve 687. The gear ring 1 685 is meshed with a gear ring 2 686, and the gear ring 2 686 is fixedly connected to the inner wall of the fixed sleeve 687. The fixed sleeve 687 is fixedly connected to the outer wall of the movable seat 66. The gear ring 2 686 is penetrated by the rotating rod 684 and is rotatably connected to the rotating rod 684. By pressing The rotating handle of the rotating rod 684 causes the tooth ring 1 685 to disengage from the tooth ring 2 686, thereby releasing the limit fixation of the tooth ring 1 685, and then rotating the rotating handle of the rotating rod 684 drives the rotating rod 684 to rotate, thereby driving the square rod 683 to rotate, and under the limiting effect of the square groove 682 on the square rod 683, the rotating shaft 681 drives the two-way screw rod 661 to rotate, thereby allowing the fixing clamp 691 to fix the suspension cable 3, thereby achieving the effect of fixing the photovoltaic module body 5. After the staff releases the rotating rod 684, under the reset effect of the reset spring, the square rod 683 moves and resets, and then the rotating rod 684 moves and resets, and the tooth ring 1 685 re-engages with the tooth ring 2 686 to achieve the limit fixation of the rotating rod 684, thereby limiting the rotation shaft 681, so that the photovoltaic module body 5 can maintain a stable fixed state, thereby improving the fixing effect of the photovoltaic module body 5.
[0040] Furthermore, in order to further improve the fixing effect of the photovoltaic module body 5, specifically, the fixing clamp 691 is fixedly connected to the outer wall of the moving block 662, the fixing clamp 691 is penetrated by the vertical rod 692 and is slidably connected to the vertical rod 692, the bottom of the vertical rod 692 is fixedly connected with a cushion block 693, the top of the vertical rod 692 is hinged with a hinge rod 694, the end of the hinge rod 694 away from the vertical rod 692 is hinged with an inclined rod 695, and the end of the inclined rod 695 away from the hinge rod 694 is hinged with a pressure block 697, the inclined rod 695 and the positioning rod 696 are rotationally connected through a torsion spring. When the fixing clamp 691 clamps the suspension cable 3, the cushion block 693 is squeezed, driving the vertical rod 692 to move upward, and then driving the hinged rod 694 to move, so that the inclined rod 695 rotates around the positioning rod 696, driving the pressure block 697 to move, so that the pressure block 697 further presses the suspension cable 3, thereby improving the fixing effect of the photovoltaic module body 5. During this process, the pressure block 697 can fit stably with the suspension cable 3.
[0041] When in use, first fix the mounting frame 1, then fix the suspension cable 3 on the fixing seat 2, then fix the supporting frame 4, so that the supporting frame 4 supports the suspension cable 3, then place the photovoltaic module body 5 on the suspension cable 3, and then rotate the screw rod 62. Under the action of the guide rod 63, the threaded block 64 can be driven to slide stably, and the connecting rod 65 can be driven to move, so that the moving seat 66 can be moved, and then the moving seat 66 can be moved to contact with the suspension cable 3, and a certain extrusion force is applied to the suspension cable 3, so that the photovoltaic module body 5 can be positioned and fixed;
[0042] At the same time, after the photovoltaic module body 5 is positioned, the rotating handle of the rotating rod 684 is pressed to disengage the tooth ring 1 685 from the tooth ring 2 686, thereby releasing the limit fixation of the tooth ring 1 685, and then rotating the rotating handle of the rotating rod 684 to drive the rotating rod 684 to rotate, thereby driving the square rod 683 to rotate, and under the limiting effect of the square groove 682 on the square rod 683, the rotating shaft 681 drives the two-way screw rod 661 to rotate, thereby allowing the fixing clip 691 to fix the suspension cable 3, thereby achieving the effect of fixing the photovoltaic module body 5. After the staff releases the rotating rod 684, under the reset effect of the reset spring, the square rod 683 moves and resets, and then the rotating rod 684 moves and resets, and the tooth ring 1 685 re-engages with the tooth ring 2 686 to achieve the limit fixation of the rotating rod 684, thereby limiting the rotation shaft 681 and keeping the photovoltaic module body 5 in a stable fixed state;
[0043] At the same time, in the process of the fixing clamp 691 clamping and fixing the suspension cable 3, the cushion block 693 is squeezed, driving the vertical rod 692 to move upward, and then driving the hinged rod 694 to move, so that the inclined rod 695 rotates around the positioning rod 696, driving the pressure block 697 to move, so that the pressure block 697 further presses the suspension cable 3, thereby keeping the photovoltaic module body 5 stable and fixed.
[0044] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A solar photovoltaic module flexible paving device, comprising a mounting frame (1), characterized in that: The top of the mounting frame (1) is fixedly connected to a fixing seat (2), the interior of the fixing seat (2) is fixedly connected to a suspension cable (3), a photovoltaic module body (5) is arranged on the suspension cable (3), a support frame (4) is arranged below the suspension cable (3), and a mounting mechanism (6) is arranged on the lower side of the photovoltaic module body (5), and the mounting mechanism (6) comprises: A mounting plate (61), the mounting plate (61) being fixedly connected to the lower side of the photovoltaic module body (5), the lower side of the mounting plate (61) being rotatably connected to a screw rod (62), and the lower side of the mounting plate (61) being fixedly connected to a guide rod (63); A threaded block (64), wherein the threaded block (64) is threadedly connected to the screw rod (62), a connecting rod (65) is hingedly connected to the outer wall of the threaded block (64), and a movable seat (66) is hingedly connected to one end of the connecting rod (65) away from the threaded block (64); A limiting assembly (68), wherein the limiting assembly (68) is arranged on the movable seat (66); and a fixing assembly (69), wherein the fixing assembly (69) is arranged on the moving seat (66).
2. A solar photovoltaic module flexible paving device according to claim 1, characterized in that: A guide rail (67) is fixedly connected to the lower side of the mounting plate (61), the guide rail (67) is slidably connected to the movable seat (66), and the threaded block (64) is penetrated by the guide rod (63) and is slidably connected to the guide rod (63).
3. A solar photovoltaic assembly flexible paving device according to claim 1, characterized in that: A bidirectional screw rod (661) is rotatably connected in the recess of the movable seat (66), and a movable block (662) is threadedly connected to the bidirectional screw rod (661), and the movable block (662) is slidably connected in the recess of the movable seat (66).
4. A solar photovoltaic module flexible paving device according to claim 3, characterized in that: The limiting assembly (68) comprises a rotating shaft (681), the rotating shaft (681) is fixedly connected to the bidirectional screw rod (661), a square groove (682) is provided at the lower end of the rotating shaft (681), a square rod (683) is slidably connected in the square groove (682), and the square rod (683) and the square groove (682) are elastically connected via a return spring.
5. A solar photovoltaic assembly flexible paving device according to claim 4, characterized in that: The lower end of the square rod (683) is rotatably connected to a rotating rod (684), the rotating rod (684) passes through the first gear ring (685) and is fixedly connected to the first gear ring (685), the rotating rod (684) passes through the fixed sleeve (687) and is slidably connected to the fixed sleeve (687), and the first gear ring (685) is meshed with the second gear ring (686).
6. A solar photovoltaic assembly flexible paving device according to claim 5, characterized in that: The second gear ring (686) is fixedly connected to the inner wall of the fixed sleeve (687), and the fixed sleeve (687) is fixedly connected to the outer wall of the movable seat (66). The second gear ring (686) is penetrated by the rotating rod (684) and is rotationally connected to the rotating rod (684).
7. A solar photovoltaic assembly flexible paving device according to claim 1, characterized in that: The fixing assembly (69) includes a fixing clamp (691), which is fixedly connected to the outer wall of the moving block (662); the fixing clamp (691) is penetrated by the vertical rod (692) and is slidably connected to the vertical rod (692); a cushion block (693) is fixedly connected to the bottom of the vertical rod (692); a hinge rod (694) is hinged to the top of the vertical rod (692); an inclined rod (695) is hinged to one end of the hinge rod (694) away from the vertical rod (692); and a pressing block (697) is hinged to one end of the inclined rod (695) away from the hinge rod (694).
8. A solar photovoltaic assembly flexible paving device according to claim 7, characterized in that: The inclined rod (695) is rotationally connected to the positioning rod (696) via a torsion spring.
9. A solar photovoltaic assembly flexible paving device according to claim 7, characterized in that: A plurality of groups of stripes are arranged on the inner surface of the fixing clamp (691), and the fixing clamp (691) matches the suspension cable (3).
10. A solar photovoltaic assembly flexible paving device according to claim 1, characterized in that: The inner surface of the side of the movable seat (66) close to the fixing clamp (691) and the inner surface of the side of the fixing clamp (691) close to the movable block (662) are located in the same vertical plane.
