Pavement pit detection device with identification function

Abstract

The invention provides a pavement pit detection device with a marking function, which comprises a mounting rack, a counterweight wheel and a handrail are arranged on the mounting rack, a plurality of groups of mounting rods are arranged on the mounting rack at intervals, the plurality of groups of mounting rods are arranged on the mounting rack in a liftable manner, a detection wheel is arranged at the bottom of each mounting rod, and a marking mechanism is arranged on the mounting rack. A mounting frame is arranged on one side of the mounting frame, an opening is formed in the end of the mounting frame, a plurality of indicating assemblies are arranged in the mounting frame, pushing mechanisms connected with the indicating assemblies on one side of the opening are arranged on the mounting rods, and the indicating assemblies are pushed out of the opening through the pushing mechanisms. According to the device, marking pigment can be sprayed at the position of the pit hole through the marking mechanism for marking, the indicating assembly can be pushed out of the opening through the pushing mechanism so that more conspicuous marking can be conducted on the road surface, and therefore it is not needed to waste much time to find the pit hole during follow-up road surface repairing.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface detection, and in particular to a road pothole detection device with a marking function. Background Art

[0002] With the rapid development of transportation infrastructure and the increasing volume of traffic on roads, potholes pose a serious threat to driving safety and road life. Potholes not only cause vehicle jolting and tire wear, but can also lead to traffic accidents, resulting in casualties and property damage. Therefore, timely and accurate pothole detection and remediation are crucial.

[0003] Currently, methods for detecting potholes primarily include manual inspections, image recognition-based detection technologies, and LiDAR (LiDAR) detection. For example, Chinese patent application number CN210486812U provides a vehicle-mounted online pothole detection device based on wheel trajectory. This device detects potholes in the direction of the wheel's trajectory, minimizing the amount of information collected. Using a camera and a single-line LiDAR to separately capture pothole topography, it can accurately and quickly capture the contours of distant potholes, as well as their distance and depth, enabling online collection of pothole information along the wheel's trajectory.

[0004] However, most existing pothole detection devices are unable to mark potholes during the detection process, which results in the inability to quickly find the location of potholes during the subsequent road repair process, reducing the efficiency of road construction. In view of this, a pothole detection device with a marking function is proposed to solve the above problem. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention proposes a road pothole detection device with a marking function to solve the technical problem that most of the existing road pothole detection devices proposed in the above background technology are unable to mark the potholes in the process of detecting the potholes, resulting in the inability to quickly find the location of the potholes in the later process of repairing the road surface, thereby reducing the work efficiency of road construction.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a road pothole detection device with a marking function, comprising:

[0007] A mounting frame provided with a counterweight wheel and a handrail;

[0008] The mounting rods are arranged in groups at intervals and are all arranged on the mounting frame in a liftable manner. The bottom of the mounting rods is provided with a detection wheel;

[0009] a marking mechanism, disposed on the mounting frame, for spraying marking pigment on one side of the detection wheel after the mounting rod is lowered;

[0010] An installation frame is provided on one side of the installation rack and has an opening at its end, wherein a plurality of indicating components are provided in the installation frame; and

[0011] The pushing mechanism is arranged on the plurality of mounting rods and connected to the indicating assembly on one side of the opening, so as to convert the lifting and lowering of the mounting rods into pushing the indicating assembly out of the opening.

[0012] In a preferred embodiment, a plurality of mounting grooves are provided at the bottom of the mounting frame, the mounting rod is slidably arranged in the mounting groove, a baffle is provided on the mounting rod, and a first elastic member is provided between the baffle and the mounting frame.

[0013] In a preferred embodiment, the marking mechanism includes:

[0014] There are multiple groups of nozzles fixed on the mounting frame, and the multiple groups of nozzles are respectively arranged on one side of the multiple groups of mounting rods, and the nozzles are provided with control switches;

[0015] a holding tank, fixedly mounted on one side of the mounting frame and connected to the plurality of nozzle groups via pipes; and

[0016] A pressing assembly is provided on the mounting rod to press the control switch when the mounting rod descends.

[0017] In a preferred embodiment, the pressing assembly includes:

[0018] an extension frame, disposed at an end of the mounting rod;

[0019] A pressure rod is escalably disposed on the extension frame, a pressure plate is disposed at the bottom of the pressure rod, and the pressure plate is located above the control switch; and

[0020] The second elastic member is arranged between the extension frame and the pressing plate.

[0021] In a preferred embodiment, the indicator assembly includes:

[0022] a movable block slidably disposed in the installation frame;

[0023] a marking rod, disposed on the movable block; and

[0024] The connecting hemisphere is arranged at the bottom of the movable block. A counterweight hemisphere is arranged at the bottom of the connecting hemisphere. The connecting hemisphere cooperates with the counterweight hemisphere to form a sphere.

[0025] In a preferred embodiment, the propulsion mechanism includes:

[0026] A lifting block, which is liftable and arranged on the mounting frame;

[0027] a driving assembly, disposed on the mounting frame and connected to the lifting block and a plurality of groups of mounting rods, so as to drive the lifting block to move up and down when any group of mounting rods is moved up and down;

[0028] a toggling assembly, disposed on the lifting block, for toggling out a group of the movable blocks inside the opening during a single lifting of the lifting block; and

[0029] The transmission component is arranged in the installation frame to apply a thrust toward the opening to a group of the movable blocks away from one end of the opening.

[0030] In a preferred embodiment, the drive assembly includes:

[0031] A connecting sleeve, arranged on the mounting rod;

[0032] A driving rope, one end of which is fixedly connected to the mounting frame, and the other end of which passes through multiple groups of connecting sleeves and is connected to a driving rod; and

[0033] An inclined groove is provided on the lifting block, and the driving rod is slidably clamped in the inclined groove.

[0034] In a preferred embodiment, a positioning frame is provided on the driving rod, a positioning track is provided on the bottom surface of the mounting frame, and the positioning frame is slidably mounted on the positioning track.

[0035] In a preferred embodiment, the shifting assembly includes a shifting rod arranged on the lifting block, a wedge block is slidably provided at the end of the shifting rod, a third elastic member is provided between the wedge block and the inner side of the shifting rod, and a fourth elastic member is provided between the bottom surface of the shifting rod and the mounting frame.

[0036] In a preferred embodiment, the transmission assembly includes:

[0037] a push block, slidably disposed in the mounting frame and abutting against a group of movable blocks at one end away from the opening;

[0038] a winding wheel rotatably disposed on an end of the mounting frame away from the opening, and a guide wheel disposed on an end of the mounting frame close to the opening;

[0039] A connecting rope, one end of which is fixedly connected to the pushing block, and the other end of which is wound around the guide wheel and then wound around the winding wheel; and

[0040] A constant force spring has one end connected to the winding wheel and the other end connected to the mounting frame.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] When in use, the device can push the mounting frame along the road surface via the handrail and the counterweight wheel. As the device as a whole moves along the road surface, multiple sets of detection wheels are in contact with the road surface. When there is a pothole on the road surface, the detection wheel descends into the pothole and drives the mounting rod down. During the descent of the mounting rod, a marking mechanism can spray marking pigment on one side of the corresponding set of detection wheels, making it easier to quickly find the location of the pothole when subsequently repairing the road surface. The propulsion mechanism can also push the indicator assembly out of the opening during the descent of the mounting rod to make a more conspicuous mark on the road surface. Even if the marking pigment is washed away by rain or covered by dust, the pothole location can be quickly found, eliminating the need to waste a lot of time searching for the pothole during subsequent road repairs, effectively improving the efficiency of road construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0044] Figure 1 A schematic diagram of the three-dimensional structure of a road pothole detection device with marking function provided by the present invention;

[0045] Figure 2 This is a schematic diagram of the bottom structure of a road pothole detection device with marking function according to the present invention;

[0046] Figure 3 This is a schematic structural diagram of a mounting frame in a road pothole detection device with marking function according to the present invention;

[0047] Figure 4 This is a schematic diagram of the installation structure of the installation frame and its internal parts in a road pothole detection device with marking function of the present invention;

[0048] Figure 5 This is a schematic structural diagram of a detection wheel in a road pothole detection device with marking function according to the present invention;

[0049] Figure 6 This is a schematic structural diagram of a marking rod in a road pothole detection device with marking function according to the present invention;

[0050] Reference numerals:

[0051] 1. Mounting frame; 2. Counterweight wheel; 3. Handrail; 4. Holding tank; 5. Nozzle; 6. Control switch; 7. Mounting slot; 8. Positioning track; 9. Mounting rod; 10. Detection wheel; 11. Baffle; 12. Connecting sleeve; 13. First elastic member; 14. Extension frame; 15. Pressure rod; 16. Pressure plate; 17. Second elastic member; 18. Drive rope; 19. Drive rod; 20. Positioning frame; 21. Lifting block; 22. Inclined slot; 23. Push rod; 24. Wedge block; 25. Mounting frame; 26. Push block; 27. Winding wheel; 28. Constant force spring; 29. Guide wheel; 30. Connecting rope; 31. Opening; 32. Movable block; 33. Identification rod; 34. Connecting hemisphere; 35. Counterweight hemisphere; 36. Fourth elastic member. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0053] Example:

[0054] like Figure 1 、 2 As shown in Figures 3 and 5, the present invention provides a road pothole detection device with a marking function, including a mounting frame 1, a counterweight wheel 2 and a handrail 3 provided on the mounting frame 1, multiple sets of mounting rods 9 arranged at intervals on the mounting frame 1, and a detection wheel 10 provided at the bottom of the mounting rods 9. The mounting frame 1 has multiple sets of mounting grooves 7 defined at the bottom, and the mounting rods 9 are slidingly arranged in the mounting grooves 7 in a manner that allows them to be raised and lowered. The mounting rods 9 are provided with a baffle 11, and a first elastic member 13 is provided between the baffle 11 and the mounting frame 1.

[0055] The entire device can be driven to move on the road surface through the handrail 3 and the counterweight wheel 2. Under the action of the first elastic member 13, a downward thrust is applied to the mounting rod 9. In the initial state, the first elastic member 13 is in a compressed state, and under the action of the counterweight wheel 2, the overall gravity of the mounting frame 1 is increased, thereby preventing the multiple sets of first elastic members 13 from resetting and lifting the mounting frame 1, and ensuring that the counterweight wheel 2 and the multiple sets of detection wheels 10 are on the same plane. In addition, when there is a pothole on the road surface, the first elastic member 13 can push the mounting rod 9 to slide downward until the detection wheel 10 contacts the inside of the pothole.

[0056] like Figure 1 、 2As shown in Figures 3 and 5, in this embodiment, a marking mechanism is provided on the mounting frame 1, through which marking paint is sprayed on one side of the detection wheel 10 after the mounting rod 9 is lowered. The marking mechanism includes multiple groups of nozzles 5, which are fixed on the mounting frame 1 and respectively arranged on one side of the multiple groups of mounting rods 9. The nozzles 5 are provided with a control switch 6. A holding tank 4 is provided on one side of the mounting frame 1, and the holding tank 4 is connected to the multiple groups of nozzles 5 through a pipe. A pressing assembly is provided on the mounting rod 9, and the control switch 6 is pressed by the pressing assembly when the mounting rod 9 is lowered. The pressing assembly includes an extension frame 14 provided at the end of the mounting rod 9, a pressure rod 15 is provided on the extension frame 14 so as to be liftable, a pressure plate 16 is provided at the bottom of the pressure rod 15, and the pressure plate 16 is located above the control switch 6. A second elastic member 17 is provided between the extension frame 14 and the pressure plate 16.

[0057] When the mounting rod 9 encounters a pothole and moves downward, it drives the extension frame 14 downward, and at the same time, the second elastic member 17 applies downward pressure to the pressure plate 16. During the downward movement of the pressure plate 16, the control switch 6 can be triggered, thereby spraying the marking pigment through the nozzle 5. In addition, it can be understood that in some embodiments, the elastic force of the second elastic member 17 is less than that of the first elastic member 13, thereby allowing the detection wheel 10 to move downward as much as possible. Moreover, under the arrangement of the second elastic member 17, no matter how far the detection wheel 10 moves downward, the control switch 6 can be triggered, thereby ensuring stable pothole marking. Among them, controlling the nozzle 5 to start spraying the marking pigment through the control switch 6 is a common technical means in this field and will not be repeated here.

[0058] like Figure 3 、 4 As shown in Figures 6 and 7, in this embodiment, a mounting frame 25 is provided on one side of the mounting frame 1, an opening 31 is provided at the end of the mounting frame 25, and multiple groups of indicating components are provided in the mounting frame 25. The indicating components include a movable block 32 slidably provided in the mounting frame 25, an identification rod 33 is provided on the movable block 32, a connecting hemisphere 34 is provided at the bottom of the movable block 32, a counterweight hemisphere 35 is provided at the bottom of the connecting hemisphere 34, and the connecting hemisphere 34 and the counterweight hemisphere 35 cooperate to form a sphere.

[0059] The indicator assembly can be placed on the road surface, and under the action of the counterweight hemisphere 35, the identification pole 33 is made upright, thereby achieving the indication effect. In addition, it can be understood that in some embodiments, the movable block 32 can be made of foam material to reduce the weight of the upper part of the indicator assembly, and the identification pole 33 can be made of fluorescent material, so that the position of the identification pole 33 can be well observed even at night.

[0060] like Figure 2 、 4As shown in Figures 5 and 6, in this embodiment, multiple sets of mounting rods 9 are provided with a propulsion mechanism connected to the indicator assembly on one side of the opening 31. The propulsion mechanism converts the lifting of the mounting rods 9 into pushing the indicator assembly out of the opening 31. The propulsion mechanism includes a lifting block 21 that is liftable and disposed on the mounting frame 1. The mounting frame 1 is provided with a drive assembly connected to the lifting block 21 and the multiple sets of mounting rods 9. The drive assembly drives the lifting block 21 to rise and fall when any set of mounting rods 9 is raised or lowered. The drive assembly includes a connecting sleeve 12 disposed on the mounting rod 9. One end of a drive rope 18 is fixedly connected to the mounting frame 1, and the other end passes through the multiple sets of connecting sleeves 12 and is connected to the drive rod 19. The lifting block 21 is provided with an inclined slot 22, and the drive rod 19 is slidably clamped in the inclined slot 22.

[0061] In the initial test state, the driving rope 18 is in a tensioned state. When there are potholes on the road surface, the detection wheel 10 and the mounting rod 9 are lowered to spray the potholes on the road surface through the marking mechanism. When the potholes are deep, the mounting rod 9 is lowered to the limit position, and then the middle section of the driving rope 18 is pulled through the connecting sleeve 12, so that the driving rope 18 is bent, thereby driving the driving rod 19 to slide horizontally, and a positioning frame 20 is provided on the driving rod 19, and a positioning track 8 is provided on the bottom surface of the mounting frame 1. The positioning frame 20 is slidably clamped on the positioning track 8, and the movement of the driving rod 19 is positioned by the cooperation of the positioning track 8 and the positioning frame 20. During the movement, the driving rod 19 can drive the lifting block 21 to descend by cooperating with the inclined groove 22.

[0062] like Figure 2 、 4 As shown in Figure 5, in this embodiment, the propulsion mechanism also includes a toggle assembly provided on the lifting block 21, through which a group of movable blocks 32 inside the opening 31 are pushed out during a single lifting of the lifting block 21. The toggle assembly includes a toggle rod 23 provided on the lifting block 21, a wedge block 24 is slidably provided at the end of the toggle rod 23, a third elastic member (not shown) is provided between the wedge block 24 and the inner side of the toggle rod 23, and a fourth elastic member 36 is provided between the bottom surface of the toggle rod 23 and the mounting frame 1.

[0063] As the lifting block 21 descends, the bottom surface of the wedge block 24 pushes a set of movable blocks 32 inside the opening 31 out of the opening 31, causing the entire indicator assembly to drop to the ground, providing a more obvious mark on the pothole. The marked pothole's depth is greater, conveniently reminding workers to perform more intensive repairs. When the road surface on which the device is moving is flat, the multiple sets of first elastic members 13 control the multiple sets of mounting rods 9 to reset, and the fourth elastic member 36 controls the reset of the lifting block 21. Simultaneously, during the reset process, the lever 23 controls the retraction of the wedge block 24 by the contact between the upper inclined surface of the wedge block 24 and the movable block 32, and compresses the third elastic member until the wedge block 24 moves above the movable block 32. At this point, the third elastic member controls the wedge block 24 to extend, ready for the next push.

[0064] like Figure 3 、 4 As shown, in this embodiment, the propulsion mechanism further includes a transmission assembly disposed within the mounting frame 25, which applies a thrust toward the opening 31 to a group of movable blocks 32 at one end away from the opening 31. The transmission assembly includes a push block 26 slidably disposed within the mounting frame 25, the push block 26 abutting against the group of movable blocks 32 at one end away from the opening 31, a winding wheel 27 rotatably disposed at the end of the mounting frame 25 away from the opening 31, and a guide wheel 29 disposed at the end of the mounting frame 25 close to the opening 31. One end of a connecting rope 30 is fixedly connected to the push block 26, and the other end is wound around the winding wheel 27 after passing around the guide wheel 29. One end of a constant force spring 28 is connected to the winding wheel 27, and the other end is connected to the mounting frame 25.

[0065] Under the action of the constant force spring 28, a rotational force is applied to the winding wheel 27, so that the connecting rope 30 is always in a tensioned state to drive the push block 26 to slide in the installation frame 25. The push block 26 applies a force toward the opening 31 to multiple groups of movable blocks 32, thereby ensuring that the movable blocks 32 located on one side of the opening 31 are clamped and cannot automatically fall out of the opening 31. After the movable block 32 on one side of the opening 31 is pushed out under the action of the toggle assembly, the push block 26 pushes the remaining groups of movable blocks 32 to continue moving until the new movable block 32 is located on one side of the opening 31, ready for the next marking.

[0066] Specific usage and beneficial effects of the present invention:

[0067] When in use, the device can push the mounting frame 1 along the road surface via the handrail 3 and the counterweight wheel 2. During the movement of the device as a whole along the road surface, multiple sets of detection wheels 10 are in contact with the road surface. When there is a pothole on the road surface, the detection wheels 10 descend into the pothole and drive the mounting rod 9 to descend. During the descent of the mounting rod 9, the marking mechanism can spray a marking pigment on one side of the corresponding set of detection wheels 10, so as to facilitate the rapid location of the pothole when the road surface is subsequently repaired. The propulsion mechanism can also push the indicator assembly out of the opening 31 during the descent of the mounting rod 9 to make a more conspicuous mark on the road surface. Even if the marking pigment is washed away by rain or covered by dust, the pothole location can be quickly found, so that there is no need to waste a lot of time searching for the pothole when the road surface is subsequently repaired, effectively improving the efficiency of road construction.

[0068] The basic principles, main features, and advantages of the present invention are shown and described above. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications and improvements may be made based on the present invention, as will be apparent to those skilled in the art. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to fall within the scope of protection claimed in the present invention.

Claims

1. A road pothole detection device with marking function, characterized in that: Includes: A mounting frame (1) is provided with a counterweight wheel (2) and a handrail (3); Multiple groups of mounting rods (9) are arranged at intervals and are all arranged on the mounting frame (1) in a manner that allows them to be lifted and lowered. A detection wheel (10) is provided at the bottom of the mounting rods (9); a marking mechanism, arranged on the mounting frame (1), for spraying marking pigment on one side of the detection wheel (10) after the mounting rod (9) descends; A mounting frame (25) is provided on one side of the mounting frame (1), and an opening (31) is provided at an end thereof. A plurality of indicating components are provided in the mounting frame (25); and A propulsion mechanism is provided on a plurality of groups of the mounting rods (9) and connected to the indicating assembly on one side of the opening (31) so as to convert the lifting and lowering of the mounting rods (9) into pushing the indicating assembly out of the opening (31).

2. The road pothole detection device with marking function according to claim 1, characterized in that: The bottom of the mounting frame (1) is provided with a plurality of mounting grooves (7), the mounting rod (9) is slidably arranged in the mounting groove (7) in a manner capable of being lifted and lowered, a baffle (11) is provided on the mounting rod (9), and a first elastic member (13) is provided between the baffle (11) and the mounting frame (1).

3. The road pothole detection device with marking function according to claim 1, characterized in that: The marking mechanism includes: There are multiple groups of nozzles (5) fixed on the mounting frame (1), and the multiple groups of nozzles (5) are respectively arranged on one side of the multiple groups of mounting rods (9), and a control switch (6) is provided on the nozzles (5); A holding tank (4) is fixedly arranged on one side of the mounting frame (1) and is connected to the plurality of nozzles (5) via pipes; and A pressing assembly is provided on the mounting rod (9) to press the control switch (6) when the mounting rod (9) descends.

4. The road pothole detection device with marking function according to claim 3, characterized in that: The pressing component includes: an extension frame (14) arranged at the end of the mounting rod (9); A pressure rod (15) is movably mounted on the extension frame (14), a pressure plate (16) is provided at the bottom of the pressure rod (15), and the pressure plate (16) is located above the control switch (6); and The second elastic member (17) is arranged between the extension frame (14) and the pressing plate (16).

5. The road pothole detection device with marking function according to claim 1, characterized in that: The indicating component includes: A movable block (32) slidably disposed in the mounting frame (25); a marking rod (33) disposed on the movable block (32); and A connecting hemisphere (34) is arranged at the bottom of the movable block (32). A counterweight hemisphere (35) is arranged at the bottom of the connecting hemisphere (34). The connecting hemisphere (34) and the counterweight hemisphere (35) cooperate to form a sphere.

6. The road pothole detection device with marking function according to claim 5, characterized in that: The propulsion mechanism includes: A lifting block (21) is arranged on the mounting frame (1) in a liftable manner; A driving assembly is provided on the mounting frame (1) and is connected to the lifting block (21) and a plurality of groups of the mounting rods (9) so as to drive the lifting block (21) to move up and down when any group of the mounting rods (9) is moved up and down; a toggle assembly, arranged on the lifting block (21), for toggling out a group of movable blocks (32) inside the opening (31) during a single lifting process of the lifting block (21); and A transmission assembly is arranged in the installation frame (25) to apply a thrust toward the opening (31) to a group of movable blocks (32) at one end away from the opening (31).

7. The road pothole detection device with marking function according to claim 6, characterized in that: The drive assembly includes: A connecting sleeve (12) is arranged on the mounting rod (9); A driving rope (18), one end of which is fixedly connected to the mounting frame (1), and the other end of which passes through multiple groups of connecting sleeves (12) and is connected to a driving rod (19); and An inclined groove (22) is provided on the lifting block (21), and the driving rod (19) is slidably mounted in the inclined groove (22).

8. The road pothole detection device with marking function according to claim 7, characterized in that: A positioning frame (20) is provided on the driving rod (19), a positioning track (8) is provided on the bottom surface of the mounting frame (1), and the positioning frame (20) is slidably mounted on the positioning track (8).

9. The road pothole detection device with marking function according to claim 6, characterized in that: The shifting assembly includes a shifting rod (23) arranged on the lifting block (21), a wedge block (24) is slidably arranged at the end of the shifting rod (23), a third elastic member is arranged between the wedge block (24) and the inner side of the shifting rod (23), and a fourth elastic member (36) is arranged between the bottom surface of the shifting rod (23) and the mounting frame (1).

10. The road pothole detection device with marking function according to claim 6, characterized in that: The transmission component includes: A push block (26) is slidably disposed in the mounting frame (25) and abuts against a group of movable blocks (32) at one end away from the opening (31); A winding wheel (27) is rotatably arranged on one end of the installation frame (25) away from the opening (31), and a guide wheel (29) is arranged on one end of the installation frame (25) close to the opening (31); A connecting rope (30), one end of which is fixedly connected to the push block (26), and the other end of which is wound around the guide wheel (29) and then wound around the winding wheel (27); and A constant force spring (28) has one end connected to the winding wheel (27) and the other end connected to the mounting frame (25).

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