CN111771519B - Environmental protection is with weeder cutting mechanism who has anti-splash structure - Google Patents

Abstract

The invention relates to the technical field of gardening and trimming, in particular to a weeding machine cutting mechanism with an anti-splash structure for environmental protection, comprising a weeding machine main body, the weeding machine main body comprising a casing, and a side of the casing is mounted with a An extension plate is installed on one side of the installation block at the top of the housing, a drive rod is installed on the side of the installation block away from the extension plate, and a protective box is installed at the other end of the drive rod. The present invention is provided with a collection mechanism, and the socket rod and the connecting rod installed on the collection ring are socketed by the socket spring on the outer surface of the socket rod, thereby increasing the resistance of the opening and closing of the movable rod, so as to make the lawn After the debris accumulates to a certain weight, it can pass through the movable rod, so that the lawn debris originally collected in the collection ring is accumulated together, so as to facilitate the staff to dispose of the debris placed on the mowed lawn. The heap is cleaned up, and in this way, the work pressure of the staff is relieved.

Description

A lawnmower cutting mechanism with anti-splash structure for environmental protection

technical field

The invention relates to the technical field of horticultural pruning, in particular to a weeder cutting mechanism with an anti-splash structure for environmental protection.

Background technique

Weeding machines are also known as lawn mowers, lawnmowers, lawn trimmers, etc. A lawnmower is a mechanical tool for mowing lawns, vegetation, etc. It consists of a cutter head, an engine, a walking wheel, a walking mechanism, a blade, a handrail, and a control part. The cutter head is installed on the walking wheel, the cutter head is equipped with an engine, and the output shaft of the engine is equipped with a blade. The blade uses the high-speed rotation of the engine to improve the speed a lot, saves the work time of the weeding workers, and reduces a lot of human resources. The working methods of the lawn mower are reciprocating and rotating. Its high mowing efficiency greatly saves time, and realizes the functions of green environmental protection and beautification of the environment. The operation is simple, convenient and efficient, so it is widely used. The machine is small and suitable for small and medium lawns. When using the lawn mower, you need to determine the height of the stubble after mowing according to the requirements, which is very convenient to use.

However, when the rotating blade of the existing weeding machine is in use, when the lawn is trimmed, the lawn debris will be scattered, which will increase the workload of the staff who clean the lawn later, and increase the labor intensity of the staff. Therefore, it is necessary to design a weeder cutting mechanism with an anti-splash structure for environmental protection to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a weeding machine cutting mechanism with an anti-splash structure for environmental protection, so as to solve the problem that the blades of the existing weeding machines that rotate when in use are mowing the lawn, which is proposed in the above-mentioned background art. The shavings will be scattered, which will increase the workload of the staff who clean the lawn later, and increase the labor intensity of the staff.

In order to achieve the above purpose, the present invention provides the following technical solutions: a weeding machine cutting mechanism with an anti-splash structure for environmental protection, comprising a weeding machine main body, the weeding machine main body includes a casing, and one side of the casing is mounted with a An installation block is installed, an extension plate is installed on one side of the installation block at the top of the housing, a drive rod is installed on the side of the installation block away from the extension plate, and a protection box is installed at the other end of the drive rod. A fixing mechanism is installed on the side of the top of the box away from the driving rod, the bottom end of the protective box is connected with a cutting mechanism, the cutting mechanism includes a mounting rod, and a mounting rod is installed inside the protective box on the side close to the casing, so The bottom end of the installation rod is provided with a chute, a sliding frame is slidably installed inside the chute, an installation column is installed between the sliding frames, and a fixing ring is sleeved and installed on the outer surface of the installation column, and the The same end of the fixing ring and the mounting post are evenly installed with cutting blades, an auxiliary plate is installed between the sliding frames at the top of the fixing ring, and one side of the auxiliary plate is provided with an engaging groove, and the interior of the engaging groove is evenly installed There are meshing teeth, the inner core of the meshing groove is installed with a half gear, the other end of the half gear is installed with a rotating screw, and the end of the rotating screw away from the sliding frame is sleeved and installed with a sleeve block, the sleeve block A first spur gear is installed at one end of the first spur gear, a second spur gear is engaged with the bottom end of the first spur gear, a sleeve ring is sleeved and installed on the outer surface of the socket block, and the second spur gear extends to A rotating motor is installed at one end inside the casing, and a collecting mechanism is installed at the side of the bottom end of the casing close to the cutting mechanism.

Preferably, the fixing mechanism includes a mounting frame, a top end of the protective box is mounted with a mounting frame, a top end inside the mounting frame is screwed with a rotating rod, one side of the mounting frame is connected with a rotating handle, and rotates One end of the handle extends to the inside of the installation frame and is connected with the rotating rod. The outer surface of the rotating rod is sleeved and installed with a first bevel gear, and the number of the first bevel gear is two. The first bevel gear The bottom ends of the two sides close to each other are meshed and installed with second bevel gears, the bottom ends of the second bevel gears are all installed with rotating screws, and the outer surfaces of the rotating screws are all sleeved and installed with extrusion rods. The mounting frame at the bottom end of the outlet rod is provided with a matching groove, and the top end of the extension plate is provided with an extension block.

Preferably, an installation groove is formed inside the extension block, a fixing spring is placed inside the installation groove, and fixing blocks are installed on both sides of the fixing spring.

Preferably, both ends of the inside of the socket block are provided with sliding grooves, and one end of the rotating screw extending to the inside of the socket block is provided with a sliding rod, and the sliding rod is slidably installed inside the sliding groove.

Preferably, a telescopic rod is installed at the bottom end of the socket ring, a positioning ring is installed on a side of the second spur gear close to the telescopic rod, and the telescopic rod can extend to the inside of the positioning ring.

Preferably, the collecting mechanism includes a collecting ring, the bottom end of the casing is connected with the collecting ring, the moving blocks are installed on the sides of the collecting rings that are close to each other, and the moving blocks are installed on the sides that are close to each other. There are movable rods, and a collecting plate is installed on one side of the collecting ring on one side of the movable rods away from each other.

Preferably, an auxiliary block is installed at the other end of one of the movable rods, and an inlaid block is installed at one end of the other movable rod close to the auxiliary block, and balls are movably placed inside the inlaid block.

Preferably, a connecting rod is installed on one side of the gathering plate close to the movable rod, the other end of the connecting rod is sleeved and installed with a socket rod, and one end of the socket rod is connected with the movable rod, and the sleeve The outer surfaces of the post are all sleeved and installed with sleeved springs.

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

1. By being provided with a collection mechanism, the socket rod and the connecting rod installed on the collection ring use the socket spring on the outer surface of the socket rod to increase the resistance of the opening and closing of the movable rod, so as to make the lawn. After the debris accumulates to a certain weight, it can pass through the movable rod, so that the lawn debris originally gathered in the collection ring is accumulated together, so as to facilitate the staff to dispose of the debris placed on the mowed lawn. The heap is cleaned up, and in this way, the work pressure of the staff is relieved.

2. By providing a fixing mechanism, the fixing block bounces into the matching groove by the elastic force of the fixing spring, so as to fix the overturned protective box, so as to facilitate the staff to cut the inside of the protective box. Blades are inspected and repaired to extend the life of the unit.

3. By setting a cutting blade, the cutting blade is repeatedly trimmed left and right, compared with most of the cutting blades on the market that need to be rotated, it can more effectively reduce the splashing of lawn debris when the device is mowing the lawn, thus To reduce the cleaning work of the staff after mowing the lawn, thereby reducing the work intensity of the staff.

Description of drawings

Fig. 1 is the structure front sectional schematic diagram of the present invention;

2 is a schematic top view sectional view of the structure of the cutting mechanism of the present invention;

3 is a schematic side view of the structure of the cutting mechanism of the present invention;

Fig. 4 is the front sectional schematic diagram of the structure of the fixing mechanism of the present invention;

5 is a schematic top view cross-sectional view of the structure of the collection mechanism of the present invention.

FIG. 6 is an enlarged schematic diagram of a part of the structure at A in FIG. 1 of the present invention.

FIG. 7 is an enlarged schematic diagram of a part of the structure at B in FIG. 5 according to the present invention.

In the figure: 100, main body of weeding machine; 110, casing; 111, mounting block; 112, extension plate; 113, protective box; 114, driving rod; 200, fixing mechanism; 210, mounting frame; 211, rotating rod; 212 , the first bevel gear; 213, the second bevel gear; 214, the rotating screw; 215, the extrusion rod; 216, the matching groove; 217, the fixed block; 218, the extension block; 219, the fixed spring; , rotary grip; 300, cutting mechanism; 310, installation rod; 311, sliding frame; 312, chute; 313, auxiliary plate; 314, half gear; 315, installation column; 316, fixing ring; 317, rotating motor; 319, meshing groove; 320, cutting blade; 321, teeth; 322, first spur gear; 323, socket ring; 324, rotating screw; 325, socket block; 326, sliding rod; 327, sliding groove; 328, Telescopic rod; 329, positioning ring; 330, second spur gear; 400, collecting mechanism; 411, collecting ring; 412, collecting plate; 413, movable block; 414, connecting rod; 415, socket spring; 416, socket rod; 417, active rod; 418, inlaid block; 419, ball; 420, auxiliary block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1-7, four embodiments provided by the present invention:

Embodiment 1, please refer to FIG. 1-FIG. 7, a weeder cutting mechanism with anti-splash structure for environmental protection, including a weeder main body 100, and the weeder main body 100 includes a housing 110, all rotary motors used in this application. 317 are all products that can be directly purchased in the market, and their principles are the prior art well known to those skilled in the art, so they will not be repeated here. An extension plate 112 is installed on one side of the mounting block 111 at the top, a drive rod 114 is installed on the side of the installation block 111 away from the extension plate 112 , and a protection box 113 is installed at the other end of the drive rod 114 , and the top of the protection box 113 is far from the drive rod 114 . A fixing mechanism 200 is installed on one side, a cutting mechanism 300 is connected to the bottom end of the protective box 113 , and the cutting mechanism 300 includes a mounting rod 310 . A sliding slot 312 is opened at the end, a sliding frame 311 is slidably installed inside the sliding slot 312, a mounting post 315 is installed between the sliding frames 311, and a fixing ring 316 is sleeved and installed on the outer surface of the installation post 315. The fixing ring 316 and the installation post A cutting blade 320 is evenly installed at the same end of 315 , an auxiliary plate 313 is installed between the sliding frames 311 at the top of the fixing ring 316 , a meshing groove 319 is opened on one side of the auxiliary plate 313 , and the meshing groove 319 is evenly installed with teeth 321 , the inner core of the meshing groove 319 is installed with a half gear 314, the other end of the half gear 314 is installed with a rotating screw 324, the end of the rotating screw 324 away from the sliding frame 311 is sleeved and installed with a sleeve block 325, one end of the sleeve block 325 A first spur gear 322 is installed, the bottom end of the first spur gear 322 is engaged with a second spur gear 330, the outer surface of the sleeve block 325 is sleeved and installed with a sleeve ring 323, and the second spur gear 330 extends to the housing A rotating motor 317 is installed at one end of the interior of the housing 110, and a collecting mechanism 400 is installed at the bottom end of the housing 110 close to the cutting mechanism 300. The rotating rotating motor 317 drives the cutting blade 320 to perform repeated left and right movements, thereby making the cutting blade 320 The lawn can be trimmed, and the cutting blade 320 is repeatedly trimmed left and right. Compared with most of the cutting blades 320 on the market that need to be rotated, it can more effectively reduce the splashing of lawn debris when the device is mowing the lawn. Thereby, the cleaning work of the staff after mowing the lawn is relieved, thereby reducing the work intensity of the staff, and at the same time, the two sides of the protective box 113 are extended, so that when the staff uses the device, the device can clean the two sides of the protective box 113. All trimming is carried out, so that when the staff is using the device, the scope of the device's trimming is expanded, thereby reducing the need for the staff to trim the lawn when mowing the lawn, thus making it easier for the staff to trim one side of the lawn. Operation.

4, the fixing mechanism 200 includes a mounting frame 210, the top of the protective box 113 is mounted with the mounting frame 210, the top inside the mounting frame 210 is screwed with a rotating rod 211, and one side of the mounting frame 210 is connected with a rotating rod. The handle 221, and one end of the rotating handle 221 extends to the inside of the mounting frame 210 and is connected with the rotating rod 211, the outer surface of the rotating rod 211 is sleeved and installed with the first bevel gear 212, and the number of the first bevel gear 212 There are two, the bottom ends of the first bevel gears 212 close to each other are meshed with the second bevel gears 213, the bottom ends of the second bevel gears 213 are all mounted with rotating screws 214, and the outer surfaces of the rotating screws 214 are all sleeved The extrusion rod 215 is installed. The mounting frame 210 at the bottom end of the extrusion rod 215 is provided with a matching groove 216. The top end of the extension plate 112 is installed with an extension block 218. The interior of the extension block 218 is provided with a mounting groove 220. The interior of the mounting groove 220 A fixed spring 219 is placed, and fixed blocks 217 are installed on both sides of the fixed spring 219. The fixed block 217 is bounced into the matching groove 216 by the elastic force of the fixed spring 219, so as to fix the overturned protective box 113, In this way, it is convenient for the staff to check and maintain the cutting blade 320 installed inside the protective box 113, thereby extending the service life of the device.

Embodiment 3, please refer to FIG. 3 , both ends of the socket block 325 are provided with sliding grooves 327 , one end of the rotating screw 324 extending to the interior of the socket block 325 is installed with a sliding rod 326 , and the sliding rod 326 is slidably installed on the sliding rod 326 . Inside the groove 327, a telescopic rod 328 is installed at the bottom end of the socket ring 323, a positioning ring 329 is installed on the side of the second spur gear 330 close to the telescopic rod 328, and the telescopic rod 328 can extend to the interior of the positioning ring 329. Pull the telescopic rod 328 so that the first spur gear 322 and the second spur gear 330 are meshed with each other. After the first spur gear 322 and the second spur gear 330 are meshed with each other, the staff then extends the telescopic rod 328 to the interior of the positioning ring 329 , and fix the position of the first spur gear 322, so as to prevent the position of the first spur gear 322 meshing with the second spur gear 330 from shifting when the device is in normal operation, thereby affecting the operation of the device, so as to prevent This affects the lawn mowing efficiency of the device.

In the fourth embodiment, please refer to FIG. 5 , the collecting mechanism 400 includes a collecting ring 411 , the bottom end of the housing 110 is connected with the collecting ring 411 , and movable blocks 413 are installed on the sides of the collecting rings 411 that are close to each other, and the movable blocks 413 are close to each other. A movable rod 417 is installed on one side of the movable rods 417, and a collecting plate 412 is installed on one side of the collecting ring 411 on one side of the movable rods 417 away from each other. One end of the block 420 is installed with a mosaic block 418, and a ball 419 is movably placed inside the mosaic block 418. A connecting rod 414 is installed on one side of the gathering plate 412 close to the movable rod 417, and the other end of the connecting rod 414 is sleeved and installed with a sleeve. The connecting rod 416, and one end of the socketing rod 416 is connected with the movable rod 417, the outer surface of the socketing rod 416 is all sleeved and installed with a socketing spring 415, and the semicircular collecting ring 411 will trim off the cutting blade 320. At the same time, the socket rod 416 and the connecting rod 414 installed on the collection ring 411 use the socket spring 415 socketed on the outer surface of the socket rod 416 to increase the resistance of the opening and closing of the movable rod 417. In this way, the lawn debris can pass through the movable rod 417 only after it has accumulated to a certain weight, so that the lawn debris originally collected in the collection ring 411 is accumulated together, so as to facilitate the staff to adjust the trimmed lawn debris. Debris piles placed on the lawn are cleaned, and in this way, the work pressure of the staff is relieved.

Working principle: The staff cleans and cuts the grass on the ground in the park or other green areas to prevent excessive weeds and cause mosquitoes to breed among the weeds, thus affecting the mood of passers-by to play in the park. The staff operates the rotating motor 317 installed inside the casing 110 by using the control switch on the front of the casing 110, so that the staff can operate the device to mow the lawn, and the rotating motor 317 drives the installation column 315 to move left and right. The position of the fixing ring 316 is fixed without any movement, so the cutting blade 320 installed on the fixing ring 316 and the mounting post 315 will mow the lawn, and the two sides of the protective box 113 are extended, Therefore, when the staff is manipulating the device to mow the lawn, the extensions on both sides of the device will trim the bottom of the lawn while the device is trimming the lawn, so as to reduce the workload of the staff to mow the lawn. When the device is mowing the lawn, the lawn debris cut by the cutting blade 320 will be concentrated inside the protective box 113 due to the blocking of the protective box 113, so as to prevent the lawn debris from appearing when the device is mowing the lawn. Splashing, which will reduce the work pressure of the staff when the staff cleans the lawn later.

The collecting mechanism 400 installed at the bottom end of the housing 110 behind the protective box 113 will collect the debris blocked inside the protective box 113 in the middle of the collecting ring 411 , and thus the movable rod 417 in the middle of the collecting ring 411 will be collected. Centralized discharge, so as to facilitate the cleaning of the lawn later by the staff, and the socket rod 416 and the socket spring 415 installed on the other end of the movable rod 417 will provide a certain resistance to the open and closed movable rod 417, so as to In order to make the lawn debris concentrated in the interior, the movable rod 417 can be pushed away after the weight reaches a certain level, and will stay on the lawn along the track of the gathering plate 412, while the grass collected on the lawn will accumulate on the lawn. The pile will also facilitate subsequent cleanup by staff, resulting in improved lawn landscaping.

After the operator controls the device to mow the lawn, the operator can stop the operation of the device through the control switch on the housing 110, and then the operator takes out the telescopic rod 328 from the positioning ring 329 and sets the socket The block 325 is recovered in the direction of the protective box 113, so that the staff can turn the protective box 113 upward by driving the rod 114, so as to facilitate the staff to carry out an overhaul of the cutting mechanism 300 inside the protective box 113, In this way, the service life of the device can be prolonged. At the same time, when the worker turns the protective box 113 over, the mounting frame 210 can cooperate with the extension block 218, and the fixing block 217 can be ejected into the matching groove 216 through the fixing spring 219, thereby to fix the installation frame 210, and thereby fix the overturned protective box 113, when the staff completes the maintenance of the cutting mechanism 300 or when the staff needs to use the device to mow the lawn, the staff can pass Rotate the rotary handle 221 to make the extrusion rod 215 sleeved on the rotary screw 214 move into the matching groove 216, so that the fixing block 217 is extruded from the matching groove 216, so that the staff can The flipped protective box 113 is flipped back, and then the worker moves in the direction of the second spur gear 330 through the telescopic rod 328 and the socket block 325, and makes the first spur gear 322 and the second spur gear 330 mesh with each other, Therefore, when the rotary motor 317 is rotated, the second spur gear 330 can drive the first spur gear 322 meshing with it to rotate, so that the device can operate normally. After the first spur gear 322 and the second spur gear 330 are meshed with each other, the worker needs to extend the telescopic rod 328 into the positioning ring 329 to fix the socket block 325 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (7)

1. A weeder cutting mechanism with an anti-splash structure for environmental protection, comprising a weeder main body (100), characterized in that: the weeder main body (100) comprises a casing (110), and the casing (110) ) is installed with a mounting block (111) on one side; An extension plate (112) is mounted on one side of the mounting block (111) at the top of the housing (110), and a drive rod (114) is mounted on the side of the mounting block (111) away from the extension plate (112). A protective box (113) is installed on the other end of the driving rod (114), a fixing mechanism (200) is installed on the side of the top of the protective box (113) away from the driving rod (114), and a bottom of the protective box (113) is installed The end is connected with a cutting mechanism (300), the cutting mechanism (300) includes a mounting rod (310), and a mounting rod (310) is mounted on the inner side of the protective box (113) close to the casing (110), the said The bottom end of the mounting rod (310) is provided with a sliding groove (312), a sliding frame (311) is slidably installed inside the sliding groove (312), and a mounting column (315) is installed between the sliding frames (311). , a fixing ring (316) is installed on the outer surface of the mounting post (315), and a cutting blade (320) is evenly installed at the same end of the fixing ring (316) and the mounting post (315). An auxiliary plate (313) is installed between the sliding frames (311) at the top of the ring (316), and an engaging groove (319) is opened on one side of the auxiliary plate (313), and the interior of the engaging groove (319) is evenly installed There are meshing teeth (321), a half gear (314) is installed in the inner core of the meshing groove (319), and a rotating screw (324) is installed at the other end of the half gear (314). A socket block (325) is mounted on one end away from the sliding frame (311), and a first spur gear (322) is mounted on one end of the socket block (325). The bottom of the first spur gear (322) A second spur gear (330) is installed in end meshing, a sleeve ring (323) is sleeved and installed on the outer surface of the socket block (325), and the second spur gear (330) extends to the housing (110) A rotating motor (317) is installed at one end of the interior, and a collecting mechanism (400) is installed at the side of the bottom end of the casing (110) close to the cutting mechanism (300); the fixing mechanism (200) includes a mounting frame (210) ), a mounting frame (210) is mounted on the top of the protective box (113), a rotating rod (211) is screwed on the top of the mounting frame (210), and a side of the mounting frame (210) is connected with The rotary handle (221) is rotated, and one end of the rotary handle (221) extends to the inside of the installation frame (210) and is connected with the rotary rod (211), the outer surface of the rotary rod (211) is sleeved and mounted with the first A bevel gear (212), and the number of the first bevel gears (212) is two, the bottom ends of the first bevel gears (212) close to each other are meshed with a second bevel gear (213), so A rotating screw (214) is installed on the bottom end of the second bevel gear (213), and an extrusion rod (215) is installed on the outer surface of the rotating screw (214). The mounting frame (210) at the bottom end of the rod (215) is provided with a matching groove (216), and the top end of the extension plate (112) is mounted with an extension block (218); the extension block (218) is provided with a mounting groove inside (220), a fixing spring (219) is placed inside the installation groove (220), and fixing blocks (217) are installed on both sides of the fixing spring (219); Both ends are provided with sliding grooves (327), and a sliding rod (326) is installed at one end of the rotating screw rod (324) extending to the inside of the socket block (325), and the sliding rod (326) is slidably installed in the sliding groove (327). )internal. 2 . The weeder cutting mechanism with an anti-splash structure for environmental protection according to claim 1 , wherein a telescopic rod ( 328 ) is installed at the bottom end of the socket ring ( 323 ), and the first A positioning ring (329) is installed on one side of the two spur gears (330) close to the telescopic rod (328), and the telescopic rod (328) can extend to the inside of the positioning ring (329). 3 . The weeder cutting mechanism with splash-proof structure for environmental protection according to claim 2 , wherein the collecting mechanism ( 400 ) comprises a collecting ring ( 411 ), and the casing ( 110 ) has a The bottom end is connected with the collecting ring (411), the moving blocks (413) are installed on the sides of the collecting rings (411) that are close to each other, and the moving rods (413) are installed on the sides of the moving blocks (413) that are close to each other. 417), a collecting plate (412) is installed on one side of the collecting ring (411) on one side of the movable rod (417) away from each other. The weeder cutting mechanism with splash-proof structure for environmental protection according to claim 3, characterized in that: an auxiliary block (420) is installed at one end of one of the movable rods (417). 5. The weeder cutting mechanism with splash-proof structure for environmental protection according to claim 4, characterized in that: an inlaid block ( 418), a ball (419) is movably placed inside the mosaic block (418). 6. The weeder cutting mechanism with splash-proof structure for environmental protection according to claim 5, characterized in that: a connecting rod ( 414). 7 . The weeder cutting mechanism with splash-proof structure for environmental protection according to claim 6 , wherein the other end of the connecting rod ( 414 ) is all sleeved and installed with a sleeve connecting rod ( 416 ), 8 . One end and the other end of the socket rod (416) are connected with the movable rod (417), and a socket spring (415) is mounted on the outer surface of the socket rod (416).

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