Measuring tool carrying device for surveying and mapping engineering

Abstract

The invention relates to the technical field of engineering surveying, and provides a surveying and mapping engineering measuring tool carrying device which comprises a shell, a partition plate is arranged in the shell, the two sides of the partition plate are fixedly connected with the two sides of the inner wall of the shell respectively, the partition plate divides the inner space of the shell into a first space and a second space, and an adjusting assembly is arranged in the partition plate; protection assemblies are arranged in the first space and the second space, and a walking assembly is arranged at the bottom of the shell; the sliding plate moves downwards through the V-shaped slopes on the opposite sides of the first clamping block and the second clamping block till the top of the surveying and mapping tool, at the moment, the sliding plate pushes the first clamping block and the second clamping block towards the two sides and compresses the first spring and the second spring correspondingly, and meanwhile a third cylinder at the bottom of the sliding plate is completely attached to the top of the surveying and mapping tool; according to the device, the surveying and mapping tools are fixed and cannot slide around, the internal space of the device can be utilized to the maximum extent by storing the surveying and mapping tools in a partitioning mode, and the surveying and mapping tools cannot collide with one another.

Description

Technical Field

[0001] The invention relates to the technical field of engineering measurement, in particular to a measuring tool carrying device for surveying and mapping engineering. Background Art

[0002] Surveying and mapping engineering mainly refers to measuring various information of space and the earth and drawing topographic maps of various information. The objects of research and surveying are very wide, mainly including various landforms and landforms on the surface and underground geological structures, hydrology, mineral deposits, etc. Among them, the special environment in the process of gold exploration and development, such as underground mines and complex geological conditions, requires the design of carrying devices to pay more attention to durability and portability. The equipment required for gold exploration is generally highly professional and heavy, which is not easy to transport. Workers are prone to bumps during the transportation process, which will cause damage to the internal professional equipment in the process. Summary of the invention

[0003] The present invention provides a measuring tool carrying device for surveying and mapping engineering to solve the problems raised in the background technology.

[0004] The technical solution of the present invention is as follows:

[0005] A measuring tool carrying device for surveying and mapping engineering, comprising: a shell, both sides of the shell are fixedly connected with handles, a partition is arranged inside the shell, both sides of the partition are respectively fixedly connected with both sides of the inner wall of the shell, the partition divides the inner space of the shell into space one and space two, an adjustment component is arranged inside the partition, a plurality of protection components are arranged in both the space one and the space two, and a walking component is arranged at the bottom of the shell;

[0006] The two ends of the partition are symmetrically provided with circular grooves, the partition is symmetrically provided with two square holes, a square groove is provided on the inner wall of one side opposite to the two square holes, and an L rod is slidably connected in the square groove;

[0007] The adjustment assembly includes a plurality of springs 1 fixedly connected to the side of the L-rod facing the square hole, a cylinder 1 is arranged in the spring 1, the cylinder 1 is fixedly connected to the L-rod, and a clamping block 1 is fixedly connected to one end of the spring 1 away from the L-rod;

[0008] The protection assembly comprises a slide plate slidably connected in the square hole, the top and bottom of the slide plate are both provided with a square groove 2, a plurality of elastic members are fixedly connected to the inner wall of the square groove 2, and a cylinder 3 is fixedly connected to one end of the elastic member away from the square groove 2;

[0009] The walking assembly includes a circular groove four opened at the bottom of the shell, a spring three is fixedly connected to the top of the inner wall of the circular groove four, and a disc is fixedly connected to the end of the spring three away from the inner wall of the circular groove four, square grooves three are opened on both sides of the inner wall of the circular groove four, a connecting rod one is rotatably connected in the square groove three on one side of the circular groove four, a clamping block three is arranged at the bottom of the connecting rod one, the connecting rod one and the clamping block three are connected by a torsion spring, and a connecting rod two is rotatably connected in the square groove three on the other side of the circular groove four, and a clamping slot two is opened on the connecting rod two.

[0010] Furthermore, the short side of the L rod extends out of the square slot one, and an inclined block is fixedly connected to the bottom of one side of the square hole close to the square slot one.

[0011] Furthermore, a plurality of springs 2 are fixedly connected to one side of the square hole close to the circular groove 1, a cylinder 2 is arranged in the spring 2, the cylinder 2 is fixedly connected to the inner wall of the square hole, a clamping block 2 is fixedly connected to one end of the spring 2 away from the inner wall of the square hole, a circular groove 2 is provided on one side of the clamping block 1, the end of the cylinder 1 away from the L rod is slidably connected to the circular groove 2, a circular groove 3 is provided on one side of the clamping block 2, the end of the cylinder 2 away from the inner wall of the square hole is slidably connected to the circular groove 3, and the opposite side of the clamping block 1 and the clamping block 2 is a V-shaped inclined surface, which facilitates the sliding of the skateboard up and down.

[0012] Furthermore, the cylinder three extends out of the square slot two, the top of the cylinder three is a rubber head, a slot one is provided on the side of the slide away from the inner wall of the space one, and the slide and the slot one on the side opposite to the slide on one side are staggered.

[0013] Furthermore, a round rod 1 is slidably connected in the circular groove 1, and the bottom end of the round rod 1 vertically passes through the bottom of the inner wall of the shell and is slidably connected to the shell, the bottom of the round rod 1 is fixedly connected to a round rod 2, and the end of the round rod 2 away from the round rod 1 is slidably connected to a track, and the side of the track away from the round rod 1 is fixedly connected to a fixed block, and the fixed block is snap-connected to the bottom of the shell, a rack 1 is arranged between the round rod 1 and the fixed block, the rack 1 is slidably connected to the bottom of the shell, a gear is arranged on one side of the rack 1, the gear is rotatably connected to the shell, the side of the gear away from the rack 1 is provided with a rack 2, the rack 2 is slidably connected to the shell, and a magnet is arranged on the side of the fixed block away from the rack 2, the magnet is fixedly connected to the shell, and a limiting block is arranged between the fixed block and the magnet.

[0014] Furthermore, a cylinder is arranged between the fixed block and the disc, the cylinder is fixedly connected to the bottom of the shell, a coil spring is arranged inside the cylinder, a connecting rope is arranged outside the coil spring, and one end of the connecting rope away from the coil spring is fixedly connected to the crawler.

[0015] Furthermore, one end of the rack 1 close to the round rod 1 is made of rubber, the connecting rod 1 and the connecting rod 2 are both L-shaped, the short sides of the connecting rod 1 and the connecting rod 2 are both arranged on the top of the disc, and the long sides of the connecting rod 1 and the connecting rod 2 are located on both sides of the disc.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention moves downward through the V-shaped inclined surface on the opposite side of the block 1 and the block 2 by the slide plate until it reaches the top of the surveying and mapping tool. At this time, the slide plate pushes the block 1 and the block 2 to both sides, so that the block 1 and the block 2 compress the spring 1 and the spring 2 respectively, and the cylinder 1 and the cylinder 2 enter the circular groove 2 and the circular groove 3 respectively. At the same time, the cylinder 3 at the bottom of the slide plate is completely fitted with the top of the surveying and mapping tool, so that the surveying and mapping tool is fixed and will not slide around. The device stores the surveying and mapping tools in blocks, which can maximize the use of the space inside the device and prevent the surveying and mapping tools from bumping into each other.

[0018] 2. The present invention pushes the connecting rod 1 and the connecting rod 2 on both sides through the disc, and the other ends of the connecting rod 1 and the connecting rod 2 move toward the disc, so that the connecting rod 1 and the connecting rod 2 at this end are close to each other at the bottom of the pan head, and the clamping block 3 is firmly clamped in the clamping groove 2, and the pan head is fixed, and then the rack 2 moves while driving the gear to rotate, and the gear drives the rack 1 to move in the direction of the round rod 1 and resists the round rod 1 to prevent the round rod 1 from sliding downward; then the staff ties the crawler to the bottom of the tripod through the connecting rope, and at this time the staff can directly push the handrail to drive the device to move, which makes full use of the function of the tripod, reduces the storage space occupied by the tripod and the pan head, and reduces the workload of the staff in areas where vehicles are inconvenient to enter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a stereogram of the device of the present invention;

[0020] Figure 2 It is the internal structure diagram of the device of the present invention;

[0021] Figure 3 is a cross-sectional view of the device of the present invention;

[0022] Figure 4 It is a structural diagram of the walking assembly of the device of the present invention;

[0023] Figure 5is a cross-sectional view of the walking assembly of the device of the present invention;

[0024] Figure 6 is a cross-sectional view of a coil spring of the device of the present invention;

[0025] Figure 7 The present invention Figure 2 Enlarged view of point A in the middle.

[0026] In the figure:

[0027] 1. Shell; 11. Partition; 111. Round groove 1; 112. Square hole; 113. Square groove 1; 114. L rod; 115. Oblique block; 12. Space 1; 13. Space 2; 2. Handle; 3. Adjustment assembly; 31. Spring 1; 32. Cylinder 1; 33. Block 1; 34. Spring 2; 35. Cylinder 2; 36. Block 2; 37. Round groove 2; 38. Round groove 3; 4. Protection assembly; 41. Slide plate; 42. Square groove 2; 43. Elastic Parts; 44, cylinder three; 45, slot one; 5, walking assembly; 51, circular slot four; 511, round rod one; 512, round rod two; 513, crawler track; 514, fixing block; 515, rack one; 516, gear; 517, rack two; 518, magnet; 52, spring three; 521, cylinder; 522, coil spring; 523, connecting rope; 53, disc; 54, square slot three; 55, connecting rod one; 56, block three; 57, connecting rod two; 58, slot two. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] like Figure 1-7 As shown, the present invention provides a measuring tool carrying device for surveying and mapping engineering, comprising: a shell 1, both sides of the shell 1 are fixedly connected with handles 2, a partition 11 is arranged in the shell 1, both sides of the partition 11 are fixedly connected with both sides of the inner wall of the shell 1, the partition 11 divides the internal space of the shell 1 into a space 12 and a space 2 13, an adjustment component 3 is arranged in the partition 11, a plurality of protection components 4 are arranged in the space 1 12 and the space 2 13, and a walking component 5 is arranged at the bottom of the shell 1;

[0030] Circular grooves 111 are symmetrically provided at both ends of the partition 11, two square holes 112 are symmetrically provided on the partition 11, a square groove 113 is provided on the inner wall of the opposite side of the two square holes 112, and an L rod 114 is slidably connected in the square groove 113 for adjusting the distance between the clamping block 1 33 and the clamping block 2 36;

[0031] The adjustment assembly 3 includes a plurality of springs 31 fixedly connected to the side of the L-rod 114 facing the square hole 112, a cylinder 32 is arranged in the spring 31, the cylinder 32 is fixedly connected to the L-rod 114, and a clamping block 33 is fixedly connected to one end of the spring 31 away from the L-rod 114;

[0032] The protection component 4 includes a slide plate 41 slidably connected to the square hole 112, and the top and bottom of the slide plate 41 are both provided with a second square groove 42, and a plurality of elastic members 43 are fixedly connected to the inner wall of the second square groove 42, and a third cylinder 44 is fixedly connected to one end of the elastic member 43 away from the second square groove 42;

[0033] The walking assembly 5 includes a circular groove four 51 opened at the bottom of the shell 1, a spring three 52 is fixedly connected to the top of the inner wall of the circular groove four 51, and a disc 53 is fixedly connected to the end of the spring three 52 away from the inner wall of the circular groove four 51, and square grooves 54 are opened on both sides of the inner wall of the circular groove four 51. A connecting rod one 55 is rotatably connected in the square groove three 54 on one side of the circular groove four 51, and a clamping block three 56 is arranged at the bottom of the connecting rod one 55. The connecting rod one 55 is connected to the clamping block three 56 through a torsion spring, and a connecting rod two 57 is rotatably connected in the square groove three 54 on the other side of the circular groove four 51, and a clamping slot two 58 is opened on the connecting rod two 57.

[0034] As a technical solution of the present invention, the short side of the L rod 114 extends out of the square slot 113 , and a slanted block 115 is fixedly connected to the bottom of one side of the square hole 112 close to the square slot 113 .

[0035] As a technical solution of the present invention, a plurality of springs 2 34 are fixedly connected to one side of the square hole 112 close to the circular groove 1 111, a cylinder 2 35 is arranged in the spring 2 34, and the cylinder 2 35 is fixedly connected to the inner wall of the square hole 112, and a clamping block 2 36 is fixedly connected to one end of the spring 2 34 away from the inner wall of the square hole 112, a circular groove 2 37 is provided on one side of the clamping block 1 33, and one end of the cylinder 1 32 away from the L rod 114 is slidably connected in the circular groove 2 37, and a circular groove 38 is provided on one side of the clamping block 2 36, and one end of the cylinder 2 35 away from the inner wall of the square hole 112 is slidably connected in the circular groove 38, and the opposite side of the clamping block 1 33 and the clamping block 2 36 is a V-shaped inclined surface, which facilitates the sliding plate 41 to slide up and down.

[0036] As a technical solution of the present invention, the cylinder three 44 extends out of the square groove two 42, the top of the cylinder three 44 is a rubber head, and the side of the slide plate 41 away from the inner wall of the space one 12 is provided with a slot one 45, and the slide plate 41 and the slot one 45 on the side opposite to the slide plate 41 on one side are staggered.

[0037] As a technical solution of the present invention, a round rod 511 is slidably connected in the circular groove 111, and the bottom end of the round rod 511 vertically penetrates the bottom of the inner wall of the shell 1 and is slidably connected to the shell 1. The bottom of the round rod 511 is fixedly connected to a round rod 2 512, and the end of the round rod 2 512 away from the round rod 1 511 is slidably connected to a track 513, and the side of the track 513 away from the round rod 1 511 is fixedly connected to a fixed block 514, and the fixed block 514 is snap-connected to the bottom of the shell 1, and the round rod 1 511 and the fixed block 51 4 is provided with a rack 1 515, the rack 1 515 is slidably connected to the bottom of the shell 1, a gear 516 is provided on one side of the rack 1 515, the gear 516 is rotatably connected to the shell 1, a rack 2 517 is provided on the side of the gear 516 away from the rack 1 515, the rack 2 517 is slidably connected to the shell 1, a magnet 518 is provided on the side of the fixing block 514 away from the rack 2 517, the magnet 518 is fixedly connected to the shell 1, and a limiting block is provided between the fixing block 514 and the magnet 518.

[0038] As a technical solution of the present invention, a cylinder 521 is arranged between the fixed block 514 and the disc 53, and the cylinder 521 is fixedly connected to the bottom of the shell 1. A coil spring 522 is arranged inside the cylinder 521, and a connecting rope 523 is arranged on the outside of the coil spring 522. One end of the connecting rope 523 away from the coil spring 522 is fixedly connected to the track 513.

[0039] As a technical solution of the present invention, the end of the rack 515 close to the round rod 511 is made of rubber, the connecting rod 55 and the connecting rod 57 are both L-shaped, the short sides of the connecting rod 55 and the connecting rod 57 are both arranged on the top of the disc 53, and the long sides of the connecting rod 55 and the connecting rod 57 are located on both sides of the disc 53.

[0040] Working principle:

[0041] like Figure 1-4As shown, the staff puts the surveying and mapping tool on the first slide plate 41, and the surveying and mapping tool presses the contacting cylinder three 44 downward by gravity, and compresses the elastic member 43, so that the cylinder three 44 completely fits the bottom of the surveying and mapping tool. Then the staff presses the second slide plate 41 downward, and the second slide plate 41 moves downward through the V-shaped inclined surface on the opposite side of the block one 33 and the block two 36 until it reaches the top of the above-mentioned surveying and mapping tool. At this time, the slide plate 41 pushes the block one 33 and the block two 36 to both sides, so that the block one 33 and the block two 36 compress the spring one 31 and the spring two 34 respectively, and the cylinder one 32 and the cylinder two 35 enter the circular groove two 37 and the circular groove three 38 respectively. At the same time, the cylinder three 44 at the bottom of the slide plate 41 is completely fitted with the top of the surveying and mapping tool, so that the surveying and mapping tool is fixed and will not slide around.

[0042] If a longer surveying and mapping tool is encountered, the two slide plates 41 can be engaged with each other through the card slot 1 45 to fix the longer surveying and mapping tool. After the two slide plates 41 fix the two sides of the surveying and mapping tool, push the top of the L rod 114 to move the L rod 114 toward the square hole 112, so that the L rod 114 leaves the square slot 113 and slides to the bottom of the inclined block 115, so that the L rod 114 drives the cylinder 1 32, the spring 1 31 and the card block 1 33 to move as a whole toward the card block 2 36, and squeeze the slide plate 41, and the card block 1 33 and the card block 2 36 that are not in contact with the slide plate 41 fit together, thereby limiting the slide plate 41 so that the slide plate 41 cannot slide up and down during the movement; the block storage of surveying and mapping tools in this device can maximize the use of the space inside the device, and prevent the surveying and mapping tools from colliding with each other.

[0043] like Figure 3-7As shown, after the surveying and mapping equipment is fixed, since the surveying and mapping equipment often needs to be lifted up by a pan head and a tripod, the staff puts the disc 53 on the top of the pan head, and the pan head pushes the disc 53 into the circular groove 4 51 and compresses the spring 3 52. At the same time, the disc 53 pushes the connecting rods 1 55 and 2 57 on both sides. Since the connecting rods 1 55 and 2 57 are L-shaped, their middle parts are rotatably connected to the inner wall of the square groove 3 54. When the disc 53 pushes one end of the connecting rods 1 55 and 2 57, the other ends of the connecting rods 1 55 and 2 57 move toward the disc 53, so that the connecting rods 1 55 and 2 57 at this end are close to each other at the bottom of the pan head. In this process, the staff rotates the clamping block 3 56 clockwise. At this time, the torsion spring is opened, and the clamping block 3 56 is placed on the clamping groove 2 58, so that one end of the clamping block 3 56 is against the inner wall of the clamping groove 2 58. The inner walls of the brackets are against each other, resulting in the torsion spring being unable to drive the block three 56 to reset, so that the connecting rod one 55 and the connecting rod two 57 fix the pan head. Then the staff removes the fixing block 514 from the bottom of the shell 1, and at the same time, the magnet 518 attracts the rack two 517 to move in this direction. The limit block restricts the rack two 517 from continuing to move in the direction of the magnet 518. The rack two 517 moves while driving the gear 516 to rotate. The gear 516 drives the rack one 515 to move in the direction of the round rod one 511 and resists the round rod one 511 to prevent the round rod one 511 from sliding downward; then the staff ties the track 513 to the tripod at the bottom of the pan head through the connecting rope 523. At this time, the staff can directly push the handrail to drive the device to move, which makes full use of the function of the tripod, reduces the storage space occupied by the tripod and the pan head, and reduces the workload of the staff in areas where vehicles are inconvenient to enter.

[0044] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A measuring tool carrying device for surveying and mapping engineering, comprising: A shell (1), both sides of which are fixedly connected to handles (2), characterized in that: a partition (11) is arranged inside the shell (1), both sides of the partition (11) are respectively fixedly connected to the two sides of the inner wall of the shell (1), the partition (11) divides the internal space of the shell (1) into a space 1 (12) and a space 2 (13), an adjustment component (3) is arranged inside the partition (11), a plurality of protection components (4) are arranged in the space 1 (12) and the space 2 (13), and a walking component (5) is arranged at the bottom of the shell (1); Circular grooves (111) are symmetrically formed at both ends of the partition (11), two square holes (112) are symmetrically formed on the partition (11), a square groove (113) is formed on the inner wall of one side of the square hole (112), and an L-rod (114) is slidably connected in the square groove (113); The adjustment assembly (3) comprises a plurality of springs (31) fixedly connected to the side of the L-rod (114) facing the square hole (112), a cylinder (32) is arranged in the spring (31), the cylinder (32) is fixedly connected to the L-rod (114), and a clamping block (33) is fixedly connected to one end of the spring (31) away from the L-rod (114); The protection component (4) comprises a slide plate (41) slidably connected in the square hole (112), the slide plate (41) is provided with a second square groove (42) on the top and the bottom, a plurality of elastic members (43) are fixedly connected to the inner wall of the second square groove (42), and a third cylinder (44) is fixedly connected to one end of the elastic member (43) away from the second square groove (42); The walking assembly (5) comprises a circular groove four (51) provided at the bottom of the housing (1), a spring three (52) being fixedly connected to the top of the inner wall of the circular groove four (51), a disc (53) being fixedly connected to one end of the spring three (52) away from the inner wall of the circular groove four (51), square grooves three (54) being provided on both sides of the inner wall of the circular groove four (51), a connecting rod one (55) being rotatably connected in the square groove three (54) on one side of the circular groove four (51), a clamping block three (56) being provided at the bottom of the connecting rod one (55), the connecting rod one (55) being connected to the clamping block three (56) via a torsion spring, a connecting rod two (57) being rotatably connected in the square groove three (54) on the other side of the circular groove four (51), a clamping groove two (58) being provided on the connecting rod two (57).

2. A portable device for surveying and mapping engineering measuring tools as claimed in claim 1, characterized in that: The short side of the L-rod (114) extends out of the square groove one (113), and a slanted block (115) is fixedly connected to the bottom of one side of the square hole (112) close to the square groove one (113).

3. A portable device for surveying and mapping engineering measuring tools as claimed in claim 1, characterized in that: A plurality of springs (34) are fixedly connected to one side of the square hole (112) close to the circular groove (111), a cylinder (35) is arranged in the spring (34), and the cylinder (35) is fixedly connected to the inner wall of the square hole (112), and a clamping block (36) is fixedly connected to one end of the spring (34) away from the inner wall of the square hole (112), a circular groove (37) is provided on one side of the clamping block (33), and one end of the cylinder (32) away from the L rod (114) is slidably connected to the circular groove (37), and a circular groove (38) is provided on one side of the clamping block (36), and one end of the cylinder (35) away from the inner wall of the square hole (112) is slidably connected to the circular groove (38), and the opposite sides of the clamping block (33) and the clamping block (36) are V-shaped inclined surfaces.

4. A portable device for surveying and mapping engineering measuring tools as claimed in claim 1, characterized in that: The cylindrical body three (44) extends out of the square groove two (42), the top of the cylindrical body three (44) is a rubber head, the side of the slide plate (41) away from the inner wall of the space one (12) is provided with a card slot one (45), and the slide plate (41) and the card slot one (45) on the side opposite to the slide plate (41) on one side are arranged alternately.

5. A portable device for surveying and mapping engineering measuring tools as claimed in claim 1, characterized in that: A round rod (511) is slidably connected in the circular groove (111); the bottom end of the round rod (511) vertically penetrates the bottom of the inner wall of the shell (1) and is slidably connected to the shell (1); a round rod (512) is fixedly connected to the bottom of the round rod (511); a track (513) is slidably connected to the end of the round rod (512) away from the round rod (511); a fixed block (514) is fixedly connected to the side of the track (513) away from the round rod (511); the fixed block (514) is snap-fitted and connected to the bottom of the shell (1); a rack (511) is provided between the round rod (511) and the fixed block (514). (515), the rack one (515) is slidably connected to the bottom of the shell (1), a gear (516) is arranged on one side of the rack one (515), the gear (516) is rotatably connected to the shell (1), a rack two (517) is arranged on the side of the gear (516) away from the rack one (515), the rack two (517) is slidably connected to the shell (1), a magnet (518) is arranged on the side of the fixed block (514) away from the rack two (517), the magnet (518) is fixedly connected to the shell (1), and a limit block is arranged between the fixed block (514) and the magnet (518).

6. A portable device for surveying and mapping engineering measuring tools as claimed in claim 5, characterized in that: A cylinder (521) is arranged between the fixed block (514) and the disc (53); the cylinder (521) is fixedly connected to the bottom of the shell (1); a coil spring (522) is arranged inside the cylinder (521); a connecting rope (523) is arranged on the outside of the coil spring (522); and one end of the connecting rope (523) away from the coil spring (522) is fixedly connected to the crawler (513).

7. A portable device for surveying and mapping engineering measuring tools as claimed in claim 5, characterized in that: One end of the rack 1 (515) close to the round rod 1 (511) is made of rubber material, the connecting rod 1 (55) and the connecting rod 2 (57) are both L-shaped, the short sides of the connecting rod 1 (55) and the connecting rod 2 (57) are both arranged on the top of the disc (53), and the long sides of the connecting rod 1 (55) and the connecting rod 2 (57) are located on both sides of the disc (53).

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