CN114542880A

CN114542880A - Engineering cost laser range finder mount

Info

Publication number: CN114542880A
Application number: CN202210185798.6A
Authority: CN
Inventors: 齐晓帅; 翟永杰; 刘文平; 常留成; 石文洁; 孙超; 倪瑞转; 赵琼璐; 牛晓静; 袁业坤; 王静; 冯文举; 冯婷婷; 李岱龙; 田亚鹏
Original assignee: Huilong Engineering Consultation Co ltd
Current assignee: Huilong Engineering Consultation Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-05-27

Abstract

The invention discloses a fixing frame of a laser range finder with engineering cost, which relates to the technical field of fixing frames and solves the problem of fatigue of workers who hold the laser range finder for a long time, and comprises a supporting tripod, a rotating assembly, a U-shaped placing frame, an angle adjusting assembly and a clamping and disassembling assembly, wherein one end of the supporting tripod is fixedly provided with a placing table, one side of the placing table is provided with a turntable, and the rotating assembly is arranged between the turntable and the placing table and used for adjusting and rotating the horizontal direction angle of the turntable. The device has simple structure and convenient operation.

Description

Engineering cost laser range finder mount

Technical Field

The invention relates to a fixing frame for a distance measuring tool, in particular to a fixing frame for a laser distance measuring instrument at engineering cost.

Background

Engineering cost personnel need go the scene in order to obtain more accurate data and survey, use various measuring tools commonly used, when using laser range finder to measure, need use the mount to measure after laser range finder is fixed in order to improve measurement accuracy, especially in the complicated operating mode of environment, only through handheld distancer very difficult alignment prediction on the measurement station.

Disclosure of Invention

The invention aims to provide a fixing frame of a laser range finder at construction cost, which can adjust the angle of the laser range finder during use and improve the measurement efficiency so as to improve the use convenience and the measurement accuracy of the laser range finder.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an engineering cost laser range finder mount, is including supporting tripod, rotating assembly, U type rack, angle adjusting component and centre gripping dismantlement subassembly, the fixed platform of placing that is equipped with in one end of supporting the tripod, the current side of placing the platform is equipped with the carousel, rotating assembly install in the carousel with place between the platform, it is right carousel horizontal direction angle modulation rotates, U type rack install in top one side of carousel is placed the laser range finder body that measures the use, angle adjusting component install in the both sides of U type rack, it is right the inclination of U type rack is adjusted, centre gripping dismantlement subassembly install in on the U type rack, to placing in on the U type rack laser range finder body centre gripping is fixed.

The rotating assembly comprises a rotating seat arranged below the turntable, and the other end of the rotating seat is connected with the placing table;

the rotating assembly further comprises a first gear fixedly arranged on the rotating seat, a second gear is meshed with one side of the first gear, a rotating rod is fixedly arranged in the middle of the second gear, and a first grab handle is fixedly arranged at the other end of the rotating rod; the horizontal position orientation of the laser range finder body on the U-shaped placing frame can be adjusted by additionally arranging the rotating assembly.

Preferably, the angle adjusting assembly comprises a rotating shaft fixedly penetrating through the U-shaped placing frame, two ends of the rotating shaft are connected with the turntable through bearing frames, two ends of the rotating shaft extend towards the other side of the bearing frames and are fixedly connected with worm wheels, one sides of the two worm wheels are meshed with worms, two sides of the two worms are connected with one side of the turntable through supporting shaft frames, and one ends of the two worms are connected with the driving assembly; the inclination angle adjustment of the laser range finder body on the U-shaped placing frame can be realized by increasing the angle adjusting assembly, the long-time holding of workers is avoided, fatigue is caused, the measuring accuracy is effectively improved, and the measuring working efficiency is improved.

Preferably, drive assembly locates two including fixed the third gear of worm one end, the fixed block that is equipped with in eccentric department in top one side of carousel, one side of fixed block is rotated and is equipped with the fourth gear, two the third gear with connect through the gear chain meshing between the fourth gear, the fixed second grab handle that is equipped with in one side of fourth gear, drive assembly can realize rotating the worm in step.

Preferably, the centre gripping dismantlement subassembly is including seting up in the slip chamber at U type rack both ends, the inside slip in slip chamber is equipped with the lifter plate, top one side of lifter plate is equipped with the holding frame, just the both ends of holding frame all with top one side fixed connection of lifter plate, below one side of lifter plate through the multiunit spring with the internal connection in slip chamber, the centre gripping dismantlement subassembly can realize fixing the laser range finder body of placing on U type rack, use simultaneously and dismantle it after accomplishing, increased the convenience of installation dismantlement.

Preferably, the both sides in slip chamber just are located all seted up the spacing groove on the U type rack, the inside in spacing groove all slides and is equipped with the slider, just one side of slider with one side fixed connection of lifter plate, the slider slides in the inside of spacing groove, has effectively improved the stability of lifter plate lift in-process.

Preferably, the fixed bracing brace that is equipped with on the middle lateral wall of U type rack, the other end that supports the bracing brace is fixed and is equipped with the backup pad, the fixed shock pad that is equipped with of opposite side of backup pad, the surface of shock pad is equipped with anti-skidding arch, the shock pad is made by the rubber material, one side of carousel seted up with support down tube assorted incision, through the fixed backup pad that is equipped with in one side that supports the bracing brace can be to the support after the slope of laser range finder body is adjusted, the effectual stability that has increased the laser range finder body and place.

Preferably, the outer walls of the two sides of the rotary table are provided with notches, the worm is arranged at the notches, and the notches are arranged on the rotary table to facilitate the placement of the supporting inclined rods in the adjusting process.

Preferably, the placing table is fixedly provided with a protective cover, the first gear and the second gear are arranged inside the protective cover, the rotating rod penetrates through the protective cover and extends outwards to be fixedly connected with the first grab handle, the protective cover is arranged on the placing table, the first gear and the second gear are arranged inside the protective cover, and the appearance attractiveness can be improved.

Preferably, the holding frame comprises U type pole that quantity is two, just through connecting rod fixed connection between the U type pole, the fixed abrasionproof pad that is equipped with in middle inside one side of U type pole, the abrasionproof pad is made by the rubber material, can reduce the friction between U type pole and the laser range finder body, has increased the security that the laser range finder body was by the centre gripping.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the existing laser range finder fixing frame is optimized, and the rotating assembly and the angle adjusting assembly are added, so that the angles of the laser range finder body in different directions can be adjusted, the use of the traditional handheld laser range finder body is avoided, the labor intensity of workers is reduced, the working efficiency of measurement can be improved, the measurement error caused by handheld shaking is avoided, the measurement accuracy is effectively improved, and the device is simple in structure and convenient to operate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the placement table of the present invention;

FIG. 3 is a schematic structural view of a turntable according to the present invention;

FIG. 4 is a schematic view of the connection between the angle adjustment assembly and the driving assembly according to the present invention;

FIG. 5 is an exploded view of the present invention;

FIG. 6 is a schematic structural diagram of a driving assembly according to the present invention;

FIG. 7 is a schematic view of a rotary assembly according to the present invention;

fig. 8 is a bottom view of the rotating assembly of the present invention.

In the figure: 1-supporting a tripod; 2-placing the table; 3, rotating the disc; 4-a rotating assembly; 5-U-shaped placing racks; 6-laser range finder body; 7-an angle adjustment assembly; 8-clamping and disassembling the assembly; 9-a rotating seat; 10-a first gear; 11-a second gear; 12-a rotating rod; 13-a rotating shaft; 14-a bearing frame; 15-a worm gear; 16-a worm; 17-supporting the shaft bracket; 18-a drive assembly; 19-a third gear; 20-fixing block; 21-a fourth gear; 22-toothed chain; 23-a second grip; 24-a sliding cavity; 25-a lifter plate; 26-a clamping frame; 27-a spring; 28-a limiting groove; 29-a slide block; 30-supporting diagonal rods; 31-a support plate; 32-notch; 33-a protective cover; 34-a first grip; 35-a shock pad; 36-non-slip protrusions; 37-U-shaped rods; 38-a connecting rod; 39-wear pad; 40-incision.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Please refer to fig. 1-8, which illustrate a fixing frame of a laser range finder for construction cost, comprising a supporting tripod 1, a rotating assembly 4, a U-shaped placing frame 5, an angle adjusting assembly 7 and a clamping and detaching assembly 8, wherein a placing table 2 is fixedly arranged at one end of the supporting tripod 1, a turntable 3 is arranged at one side of the placing table 2, the rotating assembly 4 is arranged between the turntable 3 and the placing table 2, the turntable 3 is rotated for adjusting the angle in the horizontal direction, the U-shaped placing frame 5 is arranged at one side above the turntable 3, a laser range finder body 6 for measurement is placed, the angle adjusting assembly 7 is arranged at two sides of the U-shaped placing frame 5, the inclination angle of the U-shaped placing frame 5 is adjusted, the clamping and detaching assembly 8 is arranged on the U-shaped placing frame 5, and the laser range finder body 6 placed on the U-shaped placing frame 5 is clamped and fixed.

Referring to fig. 5, 7 and 8, the rotating assembly 4 shown in the figure includes a rotating base 9 disposed below the rotating disc 3, the other end of the rotating base 9 is connected to the placing table 2, the rotating assembly 4 further includes a first gear 10 fixedly disposed on the rotating base 9, one side of the first gear 10 is engaged with a second gear 11, a rotating rod 12 is fixedly disposed in the middle of the second gear 11, and the other end of the rotating rod 12 is fixedly disposed with a first handle 34.

Referring to fig. 4, the angle adjusting assembly 7 in the figure includes a rotating shaft 13 fixedly penetrating through the U-shaped placing frame 5, two ends of the rotating shaft 13 are connected to the rotating disc 3 through a bearing frame 14, two ends of the rotating shaft 13 extend to the other side of the bearing frame 14 and are fixedly connected to worm wheels 15, one sides of the two worm wheels 15 are engaged with the worm 16, two sides of the two worm 16 are connected to one side of the rotating disc 3 through a supporting shaft frame 17, and one ends of the two worm wheels 16 are connected to a driving assembly 18.

In the field dimension measurement: firstly, a used laser range finder body 6 is placed in the middle of a U-shaped placing frame 5, so that the laser range finder body 6 is placed and fixed through a clamping and disassembling assembly 8 in the placing process, and the placing stability is improved; then the rotating component 4 and the angle adjusting component 7 are used according to the needs of on-site measurement, the direction and the inclination angle of the laser range finder body 6 are adjusted, in the adjusting process, the rotating component 4 is firstly rotated, the first grab handle 34 is rotated, the rotation of the first grab handle 34 drives the rotating rod 12 on one side to rotate, the rotation of the rotating rod 12 drives the second gear 11 on the other side to rotate, the rotation of the first gear 10 can be driven due to the meshing connection between the second gear 11 and the first gear 10, the first gear 10 is fixedly arranged on the outer side of the rotating base 9, the rotating base 9 is arranged between the turntable 3 and the placing table 2, the rotation of the rotating base 9 can be realized, the stable turntable 3 on one side above the placing table 2 is driven to rotate, the U-shaped placing frame 5 placed on the turntable 3 synchronously rotates, and the rotation of the laser range finder body 6 can be synchronously driven, the position of the laser range finder body 6 in the horizontal direction is adjusted;

then, the driving assembly 18 drives the angle adjusting assembly 7 to adjust, the driving assembly 18 can drive the worms 16 on the two sides to synchronously rotate, the rotation of the worms 16 can be meshed to drive the worm wheel 15 to rotate, the worm wheel 15 is fixedly provided with two ends of the rotating shaft 13, and the rotating shaft 13 is fixedly connected with the U-shaped placing frame 5, so that the rotating shaft 13 can be driven to rotate while the worm wheel 15 rotates, the rotating shaft drives the U-shaped placing frame 5 to move, the adjustment of the inclination angle of the U-shaped placing frame 5 is realized, the adjustment of the inclination angle of the laser range finder body 6 placed on the U-shaped placing frame 5 in the measuring process is realized, and the convenience of adjustment is effectively increased;

the device simple structure through increasing rotating assembly 4 and angle adjusting part 7, can realize avoiding traditional hand-held type to the use of laser range finder body 6 to the regulation of the different direction angles of laser range finder body, has reduced staff's intensity of labour, can improve measuring work efficiency simultaneously, avoids the measurement error that handheld shake caused, the effectual measuring precision that has improved.

Example 2

Referring to fig. 2 to 5, in this embodiment, as further described in example 1, a support tripod 1, a rotating assembly 4, a U-shaped rack 5, an angle adjusting assembly 7, and a clamping and detaching assembly 8 are shown in the drawing, a placing table 2 is fixedly disposed at one end of the support tripod 1, a turntable 3 is disposed on one side of the placing table 2, the rotating assembly 4 is mounted between the turntable 3 and the placing table 2, the turntable 3 is rotated to adjust the horizontal angle, the U-shaped rack 5 is mounted on one side above the turntable 3, a laser range finder body 6 for measurement is placed, the angle adjusting assembly 7 is mounted on two sides of the U-shaped rack 5, the inclination angle of the U-shaped rack 5 is adjusted, the clamping and detaching assembly 8 is mounted on the U-shaped rack 5, and the laser range finder body 6 placed on the U-shaped rack 5 is clamped and fixed;

referring to fig. 4, in the figure, the angle adjusting assembly 7 includes a rotating shaft 13 fixedly penetrating through the U-shaped placing frame 5, both ends of the rotating shaft 13 are connected to the rotary table 3 through a bearing frame 14, both ends of the rotating shaft 13 extend to the other side of the bearing frame 14 and are fixedly connected to worm wheels 15, one sides of the two worm wheels 15 are engaged with the worms 16, both sides of the two worms 16 are connected to one side of the rotary table 3 through a supporting shaft frame 17, and one ends of the two worms 16 are connected to a driving assembly 18;

referring to fig. 4, in the figure, the driving assembly 18 includes a third gear 19 fixedly disposed at one end of the two worms 16, a fixed block 20 is fixedly disposed at an eccentric position at one side above the turntable 3, a fourth gear 21 is rotatably disposed at one side of the fixed block 20, the two third gears 19 and the fourth gear 21 are engaged with each other by a gear chain 22, and a second handle 23 is fixedly disposed at one side of the fourth gear 21.

Referring to fig. 5, notches 32 are formed on the outer walls of the two sides of the turntable 3, and the worm 16 is disposed at the notches 32.

Referring to fig. 7, a protective cover 33 is fixedly disposed on the placing table 2, the first gear 10 and the second gear 11 are disposed inside the protective cover 33, and the rotating rod 12 penetrates the protective cover 33 and extends outward to be fixedly connected with the first handle 34.

In this embodiment, when the angle adjustment assembly 7 is adjusted in angle, the driving assembly 18 is rotated, the second handle 23 is rotated, the rotation of the second handle 23 will drive the fourth gear 21 on one side to rotate, the fourth gear 21 is meshed with the third gears 19 at one ends of the two worms 16 through the toothed chain 22, so that the third gear 19 can be driven to rotate by the rotation of the fourth gear 21, the rotation of the third gear 19 can drive the worms 16 in the angle adjustment assembly 7 on one side to rotate, the rotation of the angle adjustment assembly 7 is realized, the angle adjustment function is realized, the driving assembly 18 can drive the worms 16 on both sides to synchronously rotate, and the convenience in rotating the two worms 16 is increased.

Example 3

Referring to fig. 1 and 4, in the present embodiment, other embodiments are further described, in the illustration, a supporting tripod 1, a rotating assembly 4, a U-shaped rack 5, an angle adjusting assembly 7 and a clamping and detaching assembly 8 are provided, a placing table 2 is fixedly provided at one end of the supporting tripod 1, a turntable 3 is provided at one side of the placing table 2, the rotating assembly 4 is installed between the turntable 3 and the placing table 2, the turntable 3 is rotated to adjust the angle in the horizontal direction, the U-shaped rack 5 is installed at one side above the turntable 3 to place a laser range finder body 6 used for measurement, the angle adjusting assembly 7 is installed at two sides of the U-shaped rack 5 to adjust the inclination angle of the U-shaped rack 5, the clamping and detaching assembly 8 is installed on the U-shaped rack 5, and the laser range finder body 6 placed on the U-shaped rack 5 is clamped and fixed.

Referring to fig. 5, in the figure, the clamping and detaching assembly 8 includes sliding cavities 24 opened at both ends of the U-shaped placing frame 5, a lifting plate 25 is slidably disposed inside the sliding cavities 24, a clamping frame 26 is disposed on one side above the lifting plate 25, both ends of the clamping frame 26 are fixedly connected to one side above the lifting plate 25, and one side below the lifting plate 25 is connected to the inside of the sliding cavities 24 through a plurality of sets of springs 27;

referring to fig. 2, in the drawing, both sides of the sliding cavity 24 and the U-shaped placing frame 5 are both provided with a limiting groove 28, a sliding block 29 is slidably disposed inside the limiting groove 28, and one side of the sliding block 29 is fixedly connected with one side of the lifting plate 25.

Referring to fig. 3, a supporting diagonal rod 30 is fixedly disposed on a side wall of the middle of the U-shaped placing frame 5, a supporting plate 31 is fixedly disposed at the other end of the supporting diagonal rod 30, a shock absorbing pad 35 is fixedly disposed at the other side of the supporting plate 31, an anti-skid protrusion 36 is disposed on the surface of the shock absorbing pad 35, the shock absorbing pad 35 is made of rubber, and a notch 40 matched with the supporting diagonal rod 30 is disposed at one side of the rotating disc 3.

Referring to fig. 5, the illustrated clamping frame 26 is composed of two U-shaped rods 37, the U-shaped rods 37 are fixedly connected by a connecting rod 38, an anti-wear pad 39 is fixedly disposed on one side of the middle inner portion of the U-shaped rods 37, and the anti-wear pad 39 is made of rubber.

In this embodiment, when the laser range finder body 6 is placed on the U-shaped placing frame 5, the holding frame 26 in the holding and detaching assembly 8 on the U-shaped placing frame 5 is pulled, the lifting plates 25 at the two ends of the holding frame 26 can be pulled to slide in the sliding cavity 24, and during the sliding process of the lifting plates 25 in the sliding cavity 24, the sliding blocks 29 will slide in the limiting grooves 28 synchronously, so as to increase the stability of the lifting plates 25 during the lifting process, meanwhile, the lifting plate 25 stretches the spring 27, the clamping frame 26 stretches, then the laser range finder body 6 is placed in the U-shaped placing frame 5, at the moment, the clamping frame is pulled to be released, the lifting plate 25 descends under the action of the spring 27, the clamping frame 26 is driven to carry out limiting clamping on two sides of the top of the laser range finder body 6, and the placing stability of the laser range finder body 6 is improved;

laser range finder body 6 is when the centre gripping is fixed, because holding frame 26 comprises two U type poles 37 and connecting rod 38, the centre gripping is fixed and is carried out spacing centre gripping to the side of laser range finder body 6, make things convenient for the normal use of laser range finder body 6, inboard fixed abrasionproof pad 39 that is equipped with in the centre of U type pole 37 simultaneously, avoid U type pole to cause wearing and tearing to laser range finder body 6, the security among the clamping process has been increased, the fixed bracing down tube 30 and the backup pad 31 of being equipped with in the centre outside of U type rack 5, thereby can realize supporting laser range finder body 6 at the in-process that carries out inclination regulation to U type rack 5, increase the security of placing in the accommodation process.

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

Claims

1. An engineering cost laser range finder mount, includes:

the device comprises a supporting tripod (1), wherein a placing table (2) is fixedly arranged at one end of the supporting tripod (1), and a turntable (3) is arranged on one side of the placing table (2);

the rotating assembly (4) is arranged between the turntable (3) and the placing table (2) and used for adjusting the angle of the turntable (3) in the horizontal direction;

it is characterized by also comprising: the U-shaped placing frame (5) is arranged on one side above the turntable (3) and used for placing the laser range finder body (6) for measurement;

the angle adjusting components (7) are arranged on two sides of the U-shaped placing rack (5) and used for adjusting the inclination angle of the U-shaped placing rack (5);

and the clamping and dismounting assembly (8) is arranged on the U-shaped placing frame (5) and is used for clamping and fixing the laser range finder body (6) on the U-shaped placing frame (5).

2. The construction cost laser range finder fixing frame according to claim 1, wherein the rotating assembly (4) comprises a rotating base (9) arranged below the turntable (3), and the other end of the rotating base (9) is connected with the placing table (2);

the rotating assembly (4) is characterized by further comprising a first gear (10) fixedly arranged on the rotating base (9), a second gear (11) is meshed with one side of the first gear (10), a rotating rod (12) is fixedly arranged in the middle of the second gear (11), and a first grab handle (34) is fixedly arranged at the other end of the rotating rod (12).

3. The construction cost laser range finder fixing frame according to claim 1, characterized in that the angle adjusting assembly (7) comprises a rotating shaft (13) fixedly penetrating through the U-shaped placing frame (5), two ends of the rotating shaft (13) are connected with the rotary table (3) through bearing frames (14), two ends of the rotating shaft (13) extend to the other side of the bearing frames (14) and are fixedly connected with worm wheels (15), one sides of the two worm wheels (15) are connected with worm screws (16) in a meshed mode, two sides of the worm screws (16) are connected with one side of the rotary table (3) through supporting shaft frames (17), and one ends of the two worm screws (16) are connected with a driving assembly (18).

4. The construction cost laser range finder fixing frame according to claim 3, wherein the driving assembly (18) comprises a third gear (19) fixedly arranged at one end of each of the two worms (16), a fixing block (20) is fixedly arranged at an eccentric position on one side above the rotary table (3), a fourth gear (21) is rotatably arranged on one side of the fixing block (20), the two third gears (19) are meshed with the fourth gear (21) through a toothed chain (22), and a second handle (23) is fixedly arranged on one side of the fourth gear (21).

5. The construction cost laser range finder fixing frame according to claim 1, wherein the clamping and detaching assembly (8) comprises sliding cavities (24) arranged at two ends of the U-shaped placing frame (5), a lifting plate (25) is arranged inside the sliding cavities (24) in a sliding mode, a clamping frame (26) is arranged on one side above the lifting plate (25), two ends of the clamping frame (26) are fixedly connected with one side above the lifting plate (25), and one side below the lifting plate (25) is connected with the inside of the sliding cavities (24) through a plurality of groups of springs (27).

6. The construction cost laser range finder fixing frame according to claim 5, wherein limiting grooves (28) are formed in two sides of the sliding cavity (24) and located on the U-shaped placing frame (5), sliding blocks (29) are arranged in the limiting grooves (28) in a sliding mode, and one side of each sliding block (29) is fixedly connected with one side of the lifting plate (25).

7. The construction cost laser range finder fixing frame according to claim 1, characterized in that a supporting diagonal rod (30) is fixedly arranged on one side wall in the middle of the U-shaped placing frame (5), a supporting plate (31) is fixedly arranged at the other end of the supporting diagonal rod (30), a shock pad (35) is fixedly arranged at the other side of the supporting plate (31), an anti-skid protrusion (36) is arranged on the surface of the shock pad (35), the shock pad (35) is made of rubber materials, and a notch (40) matched with the supporting diagonal rod (30) is formed in one side of the turntable (3).

8. The construction cost laser range finder fixing frame according to claim 3, wherein the outer walls of two sides of the rotating disc (3) are provided with notches (32), and the worm (16) is arranged at the notches (32).

9. The construction cost laser range finder fixing frame according to claim 1, wherein a protective cover (33) is fixedly arranged on the placing table (2), the first gear (10) and the second gear (11) are arranged inside the protective cover (33), and the rotating rod (12) penetrates through the protective cover (33) and extends outwards to be fixedly connected with the first grab handle (34).

10. The construction cost laser range finder fixing frame according to claim 5, wherein the clamping frame (26) is composed of two U-shaped rods (37), the U-shaped rods (37) are fixedly connected through a connecting rod (38), an anti-abrasion pad (39) is fixedly arranged on one side of the middle inner portion of each U-shaped rod (37), and the anti-abrasion pad (39) is made of rubber.