Laser ranging mechanism with high measurement precision

Abstract

The invention discloses a laser ranging mechanism with high measurement precision, which comprises a fixed seat, an adjusting mechanism is arranged on the fixed seat, a transmission rod is rotated in the fixed seat, an axial mechanism is mounted on the fixed seat, a pitching groove is formed in a rotating seat, a pitching block is slidably connected in the pitching groove, and the pitching block is slidably connected in the pitching groove. According to the adjusting mechanism, the pitching angle is adjusted through cooperation of a rotating base and a pitching block, the adjusting flexibility is guaranteed through the design of a multi-direction base and a follow-up ball, switching of coarse adjustment and fine adjustment is achieved through cooperation of a thick screw rod and a thin screw rod, the adjusting precision and efficiency are greatly improved, meanwhile, the stability of the adjusting process is improved through arrangement of a side spring, and the service life of the adjusting mechanism is prolonged. In addition, the design of the synchronous ring and the synchronous sleeve ensures the synchronism in the coarse adjustment and fine adjustment processes, errors in the adjustment process are avoided, the arrangement of the display screen and the scales enables the adjustment process to be more visual and accurate, an operator can quickly find the optimal measurement angle, and the measurement accuracy is improved. And the measurement precision and the use convenience of the laser range finder are improved.

Description

Technical Field

[0001] The present invention relates to the technical field, and more particularly to a laser distance measuring mechanism with high measuring accuracy. Background Art

[0002] In the current indoor laser ranging technology, the commonly used method is to place the laser rangefinder on a plane in the room for measurement. The surveyor usually chooses a relatively flat surface, such as a table, floor or wall, and places the rangefinder on it. Then, the distance is measured by emitting a laser beam and receiving the reflected signal. This method is simple and direct, easy to operate, and therefore very common in daily use. However, this measurement method has a significant defect, that is, the accuracy is often not ideal.

[0003] The main reason for the lack of accuracy is that simply placing the rangefinder on a plane cannot guarantee that it remains completely parallel to the measured plane. In fact, there is often a small angular deviation between the laser rangefinder and the measured plane. This deviation is mainly reflected in the pitch angle and axial angle. Even subtle deviations that are difficult to detect with the naked eye will have a significant impact on the measurement results. This is because during the propagation of the laser, slight changes in the angle will be magnified by the distance, resulting in errors between the measurement result and the actual distance. This error not only affects the accuracy of a single measurement, but also accumulates when performing multiple measurements or large-scale measurements, ultimately leading to a reduction in the overall measurement accuracy. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the problems existing in the prior art, the present invention provides a laser distance measuring mechanism with high measurement accuracy to solve the technical problems mentioned in the background technology.

[0005] (II) Technical solution To achieve the above-mentioned object, the present invention provides the following technical solutions: a laser distance measuring mechanism with high measurement accuracy, comprising a fixed seat, the fixed seat is provided with an adjustment mechanism, the adjustment mechanism comprises an axial mechanism, a rotating seat, a transmission rod, a pitch block, a side spring, a multi-directional seat, a follower ball, an extension rod, a bottom block, a top block, a guide rod, a thick screw, a thin screw and a fixing mechanism, the transmission rod is installed on the rotating seat, the transmission rod rotates in the fixed seat, the axial mechanism is installed on the fixed seat, the rotating seat is provided with a pitch groove, the pitch block is slidably connected in the pitch groove, and two are installed on the pitch block The side springs, two of the side springs are respectively connected to the rotating seat, and a plurality of the multi-directional seats are respectively provided on the rotating seat and the pitch block, and each of the multi-directional seats is rotatably connected to a follow-up ball, and each of the follow-up balls is respectively installed with an extension rod, and the extension rods at the upper and lower ends are respectively installed with a top block and a bottom block, and the top block and the bottom block are respectively provided with guide holes, and the guide rod is slidably connected in the guide hole, the fine screw is threadedly connected to the top block, and the coarse screw is threadedly connected to the bottom block, the pitch of the coarse screw is slightly larger than the pitch of the fine screw, and the fixing mechanisms are respectively installed on the coarse screw.

[0006] The present invention is further configured such that a laser rangefinder is provided on the pitch block, a display screen is provided on the upper end surface of the laser rangefinder, the display screen and the laser rangefinder are electrically connected, and a plurality of scales are provided on the side wall of the fixed seat. This configuration enables the distance measurement result to be displayed intuitively, and the operator can observe the measurement data in real time. At the same time, the scales on the fixed seat can assist in adjusting the angle, thereby improving the measurement accuracy and the convenience of operation.

[0007] The present invention is further configured as follows: the fine screw and the coarse screw are respectively provided with synchronous rings coaxially, a synchronous sleeve is rotatably provided between the two synchronous rings, a sliding hole is provided in the coarse screw, a push rod is slidably provided in the sliding hole, an internal rod is provided on the push rod, and an internal groove is provided on the coarse screw, the internal rod is slidably connected in the internal groove, and an internal hole is provided in the fine screw. This design realizes the switching function of coarse adjustment and fine adjustment, the synchronous ring and the synchronous sleeve ensure the synchronous movement of the two screws, and the cooperation of the internal rod and the internal groove provides a stable guide, so that the adjustment process is smoother and more precise.

[0008] The present invention is further configured as follows: a push plate is provided on the push rod, a telescopic plate is provided on the push plate, a positioning groove is provided on the telescopic plate, a positioning block is coaxially provided on the push rod, and the positioning block is clamped in the positioning groove. This structural design allows the coarse adjustment and fine adjustment states to be switched by simple push-pull operations. The cooperation of the positioning block and the positioning groove ensures the stability of the two states, thereby improving the reliability and ease of use of the adjustment mechanism.

[0009] The present invention is further configured such that a rotating rod is coaxially provided on the thin screw, and a plurality of vertical grooves are equidistantly provided on the side wall of the rotating rod. This design provides a convenient adjustment interface for the operator. The setting of the vertical grooves increases the friction of the rotating rod, making the adjustment more precise and stable, and also facilitates the operator to apply force.

[0010] The present invention is further configured as follows: the fixing mechanism includes a mounting sleeve, a telescopic rod, a retractable block, a push spring, a friction block, a guide head and a round head; the mounting sleeve is installed in the bottom block, the telescopic rod is slidably connected in the mounting sleeve, the telescopic rod is installed on the telescopic disk, a plurality of oblique grooves are equidistantly provided on the inner wall of the mounting sleeve, each of the oblique grooves is slidably connected in the retractable block, a plurality of push springs are respectively installed on each of the retractable blocks, a plurality of push springs are respectively installed on the plurality of push springs, the friction blocks abut against the telescopic rod, a guide head is respectively installed on both sides of each of the friction blocks, and a round head is installed on the telescopic rod. This complex fixing mechanism design realizes an automatic locking function, and through the cooperation of the oblique groove and the retractable block, the friction force can be automatically increased under the action of thrust, thereby achieving a stable fixing effect. At the same time, the provision of the guide head ensures the smooth movement of the friction block, thereby improving the reliability and durability of the fixing mechanism.

[0011] The present invention is further configured such that a plurality of lifting rods are equidistantly slidably provided on the lower end surface of the mounting sleeve, each of the lifting rods is provided with a follower spring, the follower spring abuts against the shrinkage block, a return spring is provided on the upper end surface of the shrinkage block, and the plurality of return springs abut against the mounting sleeve respectively. This design provides an automatic resetting function for the fixing mechanism, and the cooperation of the follower spring and the return spring enables each component to automatically return to its initial position after the fixing state is released, thereby greatly improving the convenience and efficiency of operation.

[0012] The present invention is further configured such that a plurality of the lifting rods are provided with an unlocking disk, and two of the unlocking disks are provided with an unlocking plate. This design provides a method for quickly releasing the fixed state. The operator only needs to push the unlocking plate to control a plurality of lifting rods at the same time, thereby quickly releasing the fixed state, which greatly improves the convenience and efficiency of the operation.

[0013] The present invention is further configured as follows: the axial mechanism includes a connecting rod, a gear box, a support leg and a bottom rod, a plurality of connecting rods are provided, and the plurality of connecting rods are respectively installed on a fixed seat and a gear box, a transmission rod is rotatably connected in the gear box, a plurality of support legs are provided, and the plurality of support legs are respectively installed on a lower end surface of the gear box, the bottom rod is rotatably connected in the gear box, and the interference rod and the transmission rod are coaxially arranged. This design provides a stable support structure for axial adjustment, a plurality of connecting rods and support legs ensure the stability of the entire mechanism, and the arrangement of the bottom rod provides a convenient adjustment interface for the operator.

[0014] The present invention is further configured as follows: the gear box is provided with a first internal gear and a second internal gear, the first internal gear is meshed with a first follower wheel, the first follower wheel is provided with a first rotating frame, the bottom rod is provided with a first center wheel, the first center wheel is meshed with the first follower wheel, the second internal gear is meshed with a second follower wheel, the second follower wheel is provided with a second rotating frame, the first rotating frame is provided with a second center wheel, and the second center wheel is meshed with the second follower wheel. This complex gear transmission system realizes a double deceleration function, improves the accuracy of axial adjustment, and also ensures the stability of the adjustment process, providing a strong guarantee for the precise positioning of the laser rangefinder.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a laser distance measuring mechanism with high measurement accuracy, which has the following beneficial effects: 1. The adjustment mechanism realizes the adjustment of the pitch angle through the cooperation of the rotating seat and the pitch block. The design of the multi-directional seat and the follower ball ensures the flexibility of the adjustment. The switching of coarse adjustment and fine adjustment is realized through the cooperation of the coarse and thin screws, which greatly improves the accuracy and efficiency of the adjustment. At the same time, the setting of the side spring increases the stability of the adjustment process and prevents accidental loosening. In addition, the design of the synchronous ring and the synchronous sleeve ensures the synchronization during the coarse and fine adjustment process and avoids errors in the adjustment process. The setting of the display screen and the scale makes the adjustment process more intuitive and accurate, which is conducive to the operator to quickly find the best measurement angle. The whole mechanism is cleverly designed and the components are closely matched, which improves the measurement accuracy and ease of use of the laser rangefinder.

[0016] 2. The fixing mechanism realizes the switching between coarse adjustment and fine adjustment through the cooperation of the mounting sleeve and the telescopic rod. The design of the contraction block and the friction block ensures the stability of the fine adjustment state. The design of the oblique groove enables the contraction block to be automatically locked under the action of thrust. The setting of the push spring ensures that the appropriate pressure is maintained between the friction block and the telescopic rod, thereby improving the reliability of the fixation. The design of the guide head makes the movement of the friction block smoother and reduces the possibility of jamming. The design of the lifting rod and the unlocking disk provides a method for quickly releasing the fixed state, greatly improving the convenience of operation. The setting of the return spring ensures that each component can quickly return to the initial position after the fixation is released, so as to prepare for the next operation. The whole mechanism is exquisitely designed and compact in structure. While ensuring the fixing effect, it also takes into account the convenience of operation, greatly improving the practicality of the entire ranging mechanism.

[0017] 3. The axial mechanism realizes precise adjustment of the axial angle through the multi-stage gear transmission in the gear box. The design of the connecting rod and the support leg ensures the stability of the entire mechanism. The cooperation of the first internal gear and the first follower wheel realizes the initial deceleration and improves the adjustment accuracy. The setting of the second internal gear and the second follower wheel further reduces the adjustment speed and makes the fine adjustment more precise. The design of the first rotating frame and the second rotating frame makes the deceleration process smoother and reduces the error in the transmission process. The whole mechanism adopts a double deceleration design, which greatly improves the accuracy of the axial adjustment and ensures the stability and controllability of the adjustment process, providing a strong guarantee for the precise positioning of the laser rangefinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a laser distance measuring mechanism with high measurement accuracy in the present invention; Figure 2 It is a schematic diagram of the exploded structure of the pitch block, the rotating seat and the fixed seat in the present invention; Figure 3 It is a structural schematic diagram of the adjustment mechanism in the present invention; Figure 4 It is a schematic cross-sectional structure diagram of a coarse screw and a thin screw in the present invention; Figure 5 It is a schematic diagram of the structure of the fixing mechanism and the coarse screw in the present invention; Figure 6 It is a cross-sectional structural schematic diagram of the fixing mechanism in the present invention; Figure 7 It is a schematic cross-sectional structure diagram of the gear box in the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the first rotating frame and the second rotating frame in the present invention; Fig. 9 It is a schematic cross-sectional structural diagram of the multi-directional seat in the present invention; Fig.10 It is a structural schematic diagram of the synchronous sleeve in the present invention.

[0019] In the figure: 1, fixed seat; 2, rotating seat; 3, transmission rod; 4, pitch block; 5, side spring; 6, multi-directional seat; 7, follower ball; 8, extension rod; 9, bottom block; 10, top block; 11, guide rod; 12, thick screw; 13, thin screw; 14, pitch groove; 15, the multi-directional seat; 16, guide hole; 17, laser rangefinder; 18, display screen; 19, scale; 20, synchronization ring; 21, synchronization sleeve; 22, sliding hole; 23, push rod; 24, internal rod; 25, internal groove; 26, internal hole; 27, push plate; 28, telescopic plate; 29, positioning groove; 30, positioning block ; 31. rotating rod; 32. vertical groove; 33. mounting sleeve; 34. telescopic rod; 35. contraction block; 36. push spring; 37. friction block; 38. guide head; 39. round head; 40. oblique groove; 41. lifting rod; 42. follower spring; 43. return spring; 44. unfastening disk; 45. unfastening plate; 46. connecting rod; 47. gear box; 48. support leg; 49. bottom rod; 50. first internal gear; 51. second internal gear; 52. first follower wheel; 53. first rotating frame; 54. first center wheel; 55. second follower wheel; 56. second rotating frame; 57. second center wheel. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0023] See also Figures 1 to 5A laser distance measuring mechanism with high measurement accuracy comprises a fixed seat 1, an adjustment mechanism is arranged on the fixed seat 1, the adjustment mechanism comprises an axial mechanism, a rotating seat 2, a transmission rod 3, a pitch block 4, a side spring 5, a multi-directional seat 6, a follower ball 7, an extension rod 8, a bottom block 9, a top block 10, a guide rod 11, a thick screw 12, a thin screw 13 and a fixed mechanism, the transmission rod 3 is installed on the rotating seat 2, the transmission rod 3 rotates in the fixed seat 1, the axial mechanism is installed on the fixed seat 1, a pitch groove 14 is opened on the rotating seat 2, and the pitch block 4 is slidably connected to the pitch groove 14, two side springs 5 ​​are installed on the pitch block 4, and the two side springs 5 ​​are respectively connected to the rotating seat 2. A plurality of multi-directional seats 6 are respectively provided on the rotating seat 2 and the pitch block 4, and each multi-directional seat 6 is respectively connected to a follower ball 7 for rotation. A protruding rod 8 is respectively installed on each follower ball 7, and a top block 10 and a bottom block 9 are respectively installed on the protruding rod 8 at the upper and lower ends. A guide hole 16 is respectively opened on the top block 10 and the bottom block 9, and a guide rod 11 is slidably connected in the guide hole 16, a thin screw 13 is threadedly connected to the top block 10, and a thick screw 12 is threadedly connected to the top block 10. The thread is connected to the bottom block 9, the pitch of the coarse screw 12 is slightly larger than the pitch of the fine screw 13, the fixing mechanisms are respectively installed on the coarse screw 12, the pitch block 4 is provided with a laser rangefinder 17, the upper end surface of the laser rangefinder 17 is provided with a display screen 18, the display screen 18 and the laser rangefinder 17 are electrically connected, a plurality of scales 19 are provided on the side wall of the fixing seat 1, the fine screw 13 and the coarse screw 12 are respectively provided with synchronous rings 20 coaxially, a synchronous sleeve 21 is provided between the two synchronous rings 20, a sliding hole 22 is provided in the coarse screw 12, and the sliding hole 22 A push rod 23 is provided for internal sliding, an internal rod 24 is provided on the push rod 23, and an internal groove 25 is provided on the coarse screw 12, the internal rod 24 is slidably connected in the internal groove 25, an internal hole 26 is provided in the thin screw 13, a push plate 27 is provided on the push rod 23, a telescopic plate 28 is provided on the push plate 27, a positioning groove 29 is provided on the telescopic plate 28, a positioning block 30 is coaxially provided on the push rod 23, the positioning block 30 is stuck in the positioning groove 29, a rotating rod 31 is coaxially provided on the thin screw 13, and a plurality of vertical grooves 32 are equidistantly provided on the side wall of the rotating rod 31.

[0024] Working principle: When it is necessary to measure the distance indoors by means of the laser rangefinder 17, firstly place the laser rangefinder 17 on a flat surface indoors, then align the laser rangefinder 17 with the position to be measured, and then the laser rangefinder 17 can continuously measure the distance of the irradiated surface. Since the initial placement is not parallel to the measuring surface, when adjustment is required, it is only necessary to adjust the continuous degree in the axial direction to the minimum, and the degree in the pitch direction is also reduced to the minimum to complete the measurement process.

[0025] When it is necessary to adjust the pitch angle, a coarse adjustment process is first performed. At this time, the telescopic disk 28 is pulled so that the positioning groove 29 is stuck in the positioning block 30, so that the coarse screw 12 and the bottom block 9 can be fixed, and the synchronous sleeve 21 is respectively rotatably connected in the synchronous ring 20 at the upper and lower ends, so that it is ensured that the rotation of the fine screw 13 will not be transmitted to the coarse screw 12, and only adjustment is performed in the vertical direction, and then the rotating rod 31 is rotated, so that the fine screw 13 can be driven to rotate on the top block 10, thereby changing the position between the top block 10 and the bottom block 9, and then the pitch block 4 can be pushed to slide along the pitch groove 14 through the rotation connection between the follower ball 7 and the multi-directional seat 6, thereby completing the coarse adjustment of the pitch angle, and the corresponding fixing force is provided by the side spring 5 to ensure the stability of the adjustment.

[0026] Then, when making fine adjustments, push the push plate 27 upwards, and then the telescopic plate 28 moves accordingly, and the positioning block 30 releases the connection with the positioning groove 29. At this time, the push rod 23 slides in the sliding hole 22, and the internal rod 24 slides along the internal groove 25, so that the internal rod 24 is stuck in the internal hole 26. At this time, the internal rod 24 is stuck in the internal groove 25 and the internal hole 26 at the same time, so that the synchronous rotation of the fine screw 13 and the coarse screw 12 can be guaranteed, and the limit of the fine screw 13 and the bottom block 9 is released. Then, when the rotating rod 31 is driven to rotate again, since the fine screw 13 and the coarse screw 12 are set as reverse threads, the position adjusted by the top block 10 and the bottom block 9 during rotation is the difference between the pitch of the coarse screw 12 and the pitch of the fine screw 13. Therefore, the pitch angle can be finely adjusted, thereby ensuring the accuracy of the measurement.

[0027] In order to realize the conversion between coarse adjustment and fine adjustment, a fixing mechanism is added. Figures 6 to 10 The fixing mechanism includes a mounting sleeve 33, a telescopic rod 34, a contraction block 35, a push spring 36, a friction block 37, a guide head 38 and a round head 39. The mounting sleeve 33 is mounted in the bottom block 9. The mounting sleeve 33 is slidably connected with the telescopic rod 34. The telescopic rod 34 is mounted on the telescopic disk 28. A plurality of oblique grooves 40 are equidistantly provided on the inner wall of the mounting sleeve 33. The contraction block 35 is slidably connected in each oblique groove 40. A plurality of push springs 36 are respectively mounted on each contraction block 35. A plurality of push springs 36 are respectively mounted on the friction blocks 37. The friction blocks 37 are respectively mounted on the plurality of push springs 36. The block 37 abuts against the telescopic rod 34, and guide heads 38 are installed on both sides of each friction block 37. A round head 39 is installed on the telescopic rod 34. A plurality of lifting rods 41 are equidistantly slidably provided on the lower end surface of the mounting sleeve 33. Each lifting rod 41 is provided with a follower spring 42, which abuts against the contraction block 35. A return spring 43 is provided on the upper end surface of the contraction block 35. The plurality of return springs 43 abut against the mounting sleeve 33, and release disks 44 are provided on the plurality of lifting rods 41, and release plates 45 are provided on the two release disks 44.

[0028] Working principle: When fine-tuning is performed, the telescopic rod 34 is in an upward pushing state, thereby satisfying the synchronous rotation of the coarse screw 12 and the fine screw 13, and disengaging the clamping connection between the coarse screw 12 and the bottom block 9. Since the telescopic rod 34 is slidably connected in the mounting sleeve 33, when pushed upward, the friction block 37 now abuts against the side wall of the telescopic rod 34, so it will move upward accordingly. The friction between the friction block 37 and the telescopic rod 34 is guaranteed by the push spring 36, and then the contraction block 35 moves upward. When moving upward, it is in an expanded state, so it can be pushed upward, thereby satisfying the fine-tuning state. When in the fine-tuning state, pulling the telescopic rod 34 downward will drive the contraction block 35 to slide in the opposite direction, and then make multiple contraction blocks 35 slide and contract along the oblique groove 40, thereby increasing the clamping force. Since it exceeds the friction angle, self-locking will be formed, so that the telescopic rod 34 cannot slide downward, thereby ensuring the stability of fine-tuning.

[0029] When the fine-tuning state needs to be unlocked, the unlocking plate 45 can be pushed to synchronously drive the movement of the two unlocking disks 44, and then the multiple lifting rods 41 are pushed upward, and the retracting block 35 is driven to slide and expand upward under the action of the follower spring 42, thereby unlocking the clamping connection between the telescopic rod 34 and the friction block 37, thereby ensuring the convenience of unlocking.

[0030] See also Figure 7 to Figure 8 In order to realize the axial rotation, an axial mechanism is added, which includes a connecting rod 46, a gear box 47, a leg 48 and a bottom rod 49. A plurality of connecting rods 46 are provided, and the plurality of connecting rods 46 are respectively mounted on the fixing seat 1 and the gear box 47. The transmission rod 3 is rotatably connected in the gear box 47. A plurality of legs 48 are provided, and the plurality of legs 48 are respectively mounted on the lower end surface of the gear box 47. The bottom rod 49 is rotatably connected in the gear box 47. The abutment rod and the transmission rod 3 are coaxially arranged. The gear box 4 7 is provided with a first internal gear 50 and a second internal gear 51, the first internal gear 50 is meshed with a first follower wheel 52, the first follower wheel 52 is provided with a first rotating frame 53, the bottom rod 49 is provided with a first center wheel 54, the first center wheel 54 is meshed with the first follower wheel 52, the second internal gear 51 is meshed with a second follower wheel 55, the second follower wheel 55 is provided with a second rotating frame 56, the first rotating frame 53 is provided with a second center wheel 57, the second center wheel 57 is meshed with the second follower wheel 55.

[0031] Working principle: when it is necessary to fine-tune the angle in the axial direction, first rotate the bottom rod 49. Since the first center wheel 54 is installed on the bottom rod 49, it can drive multiple first follower wheels 52 to rotate, and then drive the first rotating frame 53 to rotate, and multiple first follower wheels 52 are also meshed on the first internal gear 50, so the first rotating frame 53 will be decelerated for the first time, and then the second center wheel 57 is installed on the first rotating frame 53, the second center wheel 57 is meshed on the second follower wheel 55, and the second follower wheel 55 is meshed on the second internal gear 51, so it can drive the second rotating frame 56 to decelerate for the second time. At this time, the fine-tuning process can be satisfied after two decelerations. Since the transmission rod 3 is connected to the second rotating frame 56, it will drive the rotating seat 2 to rotate along the fixed seat 1, thereby fine-tuning the angle, thereby satisfying the axial angle adjustment, and then the most suitable positions for pitch and axial adjustment are adjusted respectively. At this time, the corresponding degrees recorded are the corresponding distances.

[0032] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A laser distance measuring mechanism with high measurement accuracy, comprising a fixing seat (1), characterized in that: The fixed seat (1) is provided with an adjustment mechanism, the adjustment mechanism comprising an axial mechanism, a rotating seat (2), a transmission rod (3), a pitch block (4), a side spring (5), a multi-directional seat (6), a follower ball (7), an extension rod (8), a bottom block (9), a top block (10), a guide rod (11), a thick screw rod (12), a thin screw rod (13) and a fixing mechanism, the transmission rod (3) being mounted on the rotating seat (2), the transmission rod (3) rotating in the fixed seat (1), the axial mechanism being mounted on the fixed seat (1), a pitch groove (14) being provided on the rotating seat (2), the pitch block (4) being slidably connected in the pitch groove (14), and two side springs (5) being mounted on the pitch block (4), the two side springs (5) being respectively connected to the rotating seat (2) and the top block (10). A plurality of multidirectional seats (6) are respectively provided on the seat (2), the rotating seat (2) and the pitch block (4), each of the multidirectional seats (6) is rotatably connected to a follower ball (7), each of the follower balls (7) is respectively provided with an extension rod (8), a top block (10) and a bottom block (9) are respectively provided on the extension rods (8) at the upper and lower ends, a guide hole (16) is respectively provided on the top block (10) and the bottom block (9), a guide rod (11) is slidably connected in the guide hole (16), the fine screw rod (13) is threadedly connected to the top block (10), the coarse screw rod (12) is threadedly connected to the bottom block (9), the pitch of the coarse screw rod (12) is slightly larger than the pitch of the fine screw rod (13), and the fixing mechanisms are respectively provided on the coarse screw rod (12).

2. The laser distance measuring mechanism with high measurement accuracy according to claim 1 is characterized in that: The pitch block (4) is provided with a laser rangefinder (17), the upper end surface of the laser rangefinder (17) is provided with a display screen (18), the display screen (18) and the laser rangefinder (17) are electrically connected, and a plurality of scales (19) are provided on the side wall of the fixing seat (1).

3. The laser distance measuring mechanism with high measurement accuracy according to claim 1 is characterized in that: The fine screw (13) and the coarse screw (12) are coaxially provided with synchronization rings (20), a synchronization sleeve (21) is rotatably provided between the two synchronization rings (20), a sliding hole (22) is provided in the coarse screw (12), a push rod (23) is slidably provided in the sliding hole (22), an internal rod (24) is provided on the push rod (23), an internal groove (25) is provided on the coarse screw (12), the internal rod (24) is slidably connected in the internal groove (25), and an internal hole (26) is provided in the fine screw (13).

4. The laser distance measuring mechanism with high measurement accuracy according to claim 3 is characterized in that: The push rod (23) is provided with a push plate (27), the push plate (27) is provided with a telescopic plate (28), the telescopic plate (28) is provided with a positioning groove (29), and the push rod (23) is coaxially provided with a positioning block (30), the positioning block (30) is clamped in the positioning groove (29).

5. The laser distance measuring mechanism with high measurement accuracy according to claim 1 is characterized in that: A rotating rod (31) is coaxially arranged on the thin screw rod (13), and a plurality of vertical grooves (32) are equidistantly arranged on the side wall of the rotating rod (31).

6. The laser distance measuring mechanism with high measurement accuracy according to claim 4 is characterized in that: The fixing mechanism comprises a mounting sleeve (33), a telescopic rod (34), a contraction block (35), a push spring (36), a friction block (37), a guide head (38) and a round head (39). The mounting sleeve (33) is mounted in the bottom block (9). The telescopic rod (34) is slidably connected in the mounting sleeve (33). The telescopic rod (34) is mounted on the telescopic disc (28). A plurality of oblique grooves (40) are equidistantly provided on the inner wall of the mounting sleeve (33). A contraction block (35) is slidably connected in each of the oblique grooves (40). A plurality of push springs (36) are respectively mounted on each of the contraction blocks (35). A friction block (37) is respectively mounted on each of the push springs (36). The friction block (37) contacts the telescopic rod (34). A guide head (38) is respectively mounted on both sides of each of the friction blocks (37). The telescopic rod (34) is mounted on a round head (39).

7. The laser distance measuring mechanism with high measurement accuracy according to claim 6 is characterized in that: A plurality of lifting rods (41) are equidistantly slidably provided on the lower end surface of the installation sleeve (33), each of the lifting rods (41) is provided with a follower spring (42), the follower spring (42) abuts against the contraction block (35), a return spring (43) is provided on the upper end surface of the contraction block (35), and the plurality of return springs (43) abut against the inside of the installation sleeve (33).

8. The laser distance measuring mechanism with high measurement accuracy according to claim 7 is characterized in that: A plurality of the lifting rods (41) are provided with an unfastening disk (44), and two of the unfastening disks (44) are provided with an unfastening plate (45).

9. The laser distance measuring mechanism with high measurement accuracy according to claim 1 is characterized in that: The axial mechanism comprises a connecting rod (46), a gear box (47), a support leg (48) and a bottom rod (49); a plurality of connecting rods (46) are provided, and the plurality of connecting rods (46) are respectively mounted on a fixing seat (1) and a gear box (47); a transmission rod (3) is rotatably connected in the gear box (47); a plurality of support legs (48) are provided, and the plurality of support legs (48) are respectively mounted on the lower end surface of the gear box (47); a bottom rod (49) is rotatably connected in the gear box (47); and the abutment rod and the transmission rod (3) are coaxially arranged.

10. The laser distance measuring mechanism with high measurement accuracy according to claim 9, characterized in that: The gear box (47) is provided with a first internal gear (50) and a second internal gear (51); the first internal gear (50) is meshed with a first follower wheel (52); the first follower wheel (52) is provided with a first rotating frame (53); the bottom rod (49) is provided with a first center wheel (54); the first center wheel (54) is meshed with the first follower wheel (52); the second internal gear (51) is meshed with a second follower wheel (55); the second follower wheel (55) is provided with a second rotating frame (56); the first rotating frame (53) is provided with a second center wheel (57); the second center wheel (57) is meshed with the second follower wheel (55).

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