Laser displacement measuring instrument

Abstract

The invention relates to the technical field of optics, and discloses a laser displacement measuring instrument which comprises a correction assembly, a correction piece, a balancing weight, a movable shell, a hanging rope, a rolling wheel, a first torsion spring, a supporting pipe, an inner suspension frame and an outer suspension frame. The movable shell is fixed to the top of the balancing weight, the hanging rope is fixed to the inner wall of the movable shell, and the rolling wheel is fixed to the inner wall of the movable shell; the winding wheel is located in the hanging rope, the winding wheel is sleeved with the supporting pipe, the supporting pipe is rotationally connected with the inner wall of the winding wheel through a rotating shaft, one end of the first torsional spring is fixed to one side of the winding wheel, and the other end of the first torsional spring is fixed to the inner wall of the supporting pipe. The laser displacement measuring instrument has the advantages that when the table top or the platform inclines, the laser displacement measuring instrument can be automatically corrected, manual adjustment is not needed, manual adjustment does not need to be carried out every time, and especially under the condition of frequent measurement, time consumed by angle adjustment can be greatly shortened.

Description

Technical Field

[0001] The invention relates to the field of optical technology, in particular to a laser displacement measuring instrument. Background Art

[0002] A laser displacement meter is an instrument that uses laser technology to accurately measure the displacement changes of an object. It is mainly composed of a laser transmitter, a receiver, a signal processing system, and a display device. The laser transmitter emits a laser beam of a specific wavelength and irradiates the surface of the object to be measured. The receiver receives the laser signal reflected from the surface of the object and converts it into an electrical signal. The signal processing system analyzes and processes the electrical signal, extracts information related to the displacement of the object, and presents it in digital or graphical form through a display device. The laser displacement meter is usually placed on a desktop or platform for use. However, when the desktop or platform is in a tilted state, it is necessary to manually adjust the angle of the laser displacement meter to make it parallel so as to detect the object. However, every time the desktop or platform is tilted, the angle of the laser displacement meter must be manually adjusted, which will undoubtedly consume a lot of time and energy, thereby greatly reducing work efficiency. Especially in situations where frequent measurements are required, frequent manual adjustment operations will seriously affect work progress and become an obstacle to improving work efficiency. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing laser displacement measuring instruments, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that when the desktop or platform is in a tilted state, it is necessary to manually adjust the angle of the laser displacement measuring instrument.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser displacement measuring instrument, comprising a correction assembly, comprising a correction part, comprising a counterweight, a moving shell, a hanging rope, a reel, a first torsion spring, a support tube, an inner suspension frame and an outer suspension frame, wherein the moving shell is fixed to the top of the counterweight, the hanging rope is fixed to the inner wall of the moving shell, the reel is located inside the hanging rope, the support tube is sleeved on the outer side of the reel, the support tube is rotatably connected to the inner wall of the reel through a rotating shaft, one end of the first torsion spring is fixed to one side of the reel, and the other end is fixed to the inner wall of the support tube, the inner suspension frame is hinged to the support tube, and the outer suspension frame is hinged to the inner suspension frame;

[0007] A support assembly is arranged on one side of the correcting member, including a support member, including a support leg, a movable column, a movable plate, a slider, a positioning rod, a first spring and an extrusion block. The support leg is located on one side of the correcting member, the movable column is fixed to one side of the support leg, the movable plate is fixed to one end of the movable column, the slider is fixed to the top of the movable plate, the positioning rod is inserted into one side of the slider, the positioning rod and the slider are movably connected, the first spring is fixed to one side of the slider, and the extrusion block is located on one side of the movable plate.

[0008] As a preferred solution of the laser displacement measuring instrument described in the present invention, wherein: the correction component also includes a connecting piece, which is arranged on the correction piece, a baffle frame is sleeved on the outer side of the counterweight block, the baffle frame and the counterweight block are movably connected, a supporting ball is fixed to the inner wall of the baffle frame, a connecting plate is fixed to one side of the movable shell, and the connecting plate is arranged on the top of the supporting ball.

[0009] As a preferred solution of the laser displacement measuring instrument described in the present invention, a protective cover is fixed on one side of the baffle frame, a pulley is arranged inside the protective cover, the pulley is hinged to the inner wall of the protective cover, an extrusion ball is arranged at one end of the pulley, an elastic plate is fixed on the top of the extrusion ball, a positioning block is fixed at one end of the elastic plate, and the positioning block is fixed to the inner wall of the protective cover.

[0010] As a preferred solution of the laser displacement measuring instrument of the present invention, a trigger plate is arranged on the top of the outer suspension frame, a support bar is fixed to one side of the trigger plate, and a second spring is fixed to the top of the support bar.

[0011] As a preferred solution of the laser displacement measuring instrument described in the present invention, the support assembly also includes a moving part, which is arranged on the support assembly, a moving rod is fixed to one side of the baffle frame, a support sleeve is provided on the outer side of the moving rod, a third spring is fixed to the inner wall of the support sleeve, and the third spring is fixed to one end of the moving rod.

[0012] As a preferred solution of the laser displacement measuring instrument described in the present invention, wherein: an extrusion rod is fixed to one end of the moving rod, the extrusion rod is inserted into one side of the support sleeve, the extrusion rod and the support sleeve are movably connected, and the extrusion rod is fixed to one side of the extrusion block.

[0013] As a preferred solution of the laser displacement measuring instrument of the present invention, a fourth spring is fixed to the inner wall of the moving rod, a ramp block is fixed to one end of the fourth spring, and a limiting groove corresponding to the ramp block is opened on the inner wall of the support sleeve.

[0014] As a preferred solution of the laser displacement measuring instrument described in the present invention, a toothed plate is provided on the top of the moving rod, a gear is fixed on the top of the toothed plate, the toothed plate and the gear are meshed, a fixed plate is provided on one side of the gear, the gear and the fixed plate are rotatably connected through a rotating shaft, and the fixed plate is fixed to the top of the protective cover.

[0015] As a preferred solution of the laser displacement measuring instrument of the present invention, a limiting wheel is fixed on one side of the gear, a limiting rod is arranged on the top of the limiting wheel, and the limiting rod is fixed to the bottom of the supporting bar.

[0016] As a preferred solution of the laser displacement measuring instrument described in the present invention, it also includes a main body component, which is arranged on the correcting part, including a measuring head, a measuring instrument body and a base, the measuring head is fixed to the top of the support tube, the measuring instrument body is arranged on one side of the external suspension frame, and the base is fixed to the bottom of the measuring instrument body.

[0017] The beneficial effects of the present invention are: when the desktop or platform is tilted, the laser displacement measuring instrument can be automatically corrected without manual adjustment, and it is no longer necessary to spend time on manual adjustment every time, especially in the case of frequent measurements, which can greatly reduce the time spent on adjusting the angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is the overall structure diagram of the laser displacement measuring instrument.

[0020] Figure 2 This is the reel structure diagram of the laser displacement measuring instrument.

[0021] Figure 3 For laser displacement measuring instruments Figure 2 A partial enlarged structural diagram in the middle.

[0022] Figure 4 This is a cross-sectional structural diagram of the base of the laser displacement measuring instrument.

[0023] Figure 5 This is the frame structure diagram of the laser displacement measuring instrument.

[0024] Figure 6 This is a cross-sectional view of the support sleeve of the laser displacement measuring instrument.

[0025] Figure 7 For laser displacement measuring instruments Figure 6 A partial enlarged structural diagram of point B in the middle.

[0026] Figure 8 This is the structural diagram of the counterweight block of the laser displacement measuring instrument.

[0027] Fig. 9 This is the tooth plate structure diagram of the laser displacement measuring instrument.

[0028] Fig.10 For laser displacement measuring instruments Fig. 9 A partial enlarged structural diagram of point C in the middle.

[0029] Fig.11 This is the structural diagram of the inclined block of the laser displacement measuring instrument. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figure 2 to Figure 11 , which is the first embodiment of the present invention, provides a laser displacement measuring instrument, which includes a correction component 200, a support component 300 and a main component 100. The three components cooperate to automatically correct the laser displacement measuring instrument when the desktop or platform is tilted, without the need for manual adjustment.

[0035] The correction component 200 includes a correction part 201, including a counterweight block 201a, a movable shell 201b, a hanging rope 201c, a reel 201d, a first torsion spring 201e, a support tube 201f, an inner suspension frame 201g and an outer suspension frame 201h. The movable shell 201b is fixed to the top of the counterweight block 201a, the hanging rope 201c is fixed to the inner wall of the movable shell 201b, the reel 201d is located in the hanging rope 201c, the support tube 201f is sleeved on the outside of the reel 201d, the support tube 201f is rotatably connected to the inner wall of the reel 201d through a rotating shaft, one end of the first torsion spring 201e is fixed to one side of the reel 201d, and the other end is fixed to the inner wall of the support tube 201f, the inner suspension frame 201g is hinged to the support tube 201f, and the outer suspension frame 201h is hinged to the inner suspension frame 201g.

[0036] When the desktop is tilted, causing the measuring instrument body 102 to tilt, the inner hanging frame 201g and the outer hanging frame 201h will move, and the counterweight block 201a will fall. When the counterweight block 201a falls, the movable shell 201b can be driven to move, and the movement of the movable shell 201b drives the hanging rope 201c to move to unwind it. When the hanging rope 201c is unwound, it can drive the reel 201d to rotate, and the rotation of the reel 201d can apply a torsional force to the first torsion spring 201e, so that the counterweight block 201a is suspended in the air, so that the support tube 201f can be in a horizontal position, and then the measuring head 101 can be in a horizontal position to measure the object. The hanging rope 201c is inserted into the bottom of the support tube 201f, and the hanging rope 201c is movably connected to the support tube 201f. The setting of the support tube 201f can support the reel 201d to prevent the reel 201d from deflecting.

[0037] The support assembly 300 is arranged on one side of the correcting member 201, and includes a support member 301, including a support leg 301a, a movable column 301b, a movable plate 301c, a slider 301d, a positioning rod 301e, a first spring 301f and an extrusion block 301g. The support leg 301a is located on one side of the correcting member 201, the movable column 301b is fixed to one side of the support leg 301a, the movable plate 301c is fixed to one end of the movable column 301b, the slider 301d is fixed to the top of the movable plate 301c, the positioning rod 301e is inserted into one side of the slider 301d, the positioning rod 301e and the slider 301d are movably connected, the first spring 301f is fixed to one side of the slider 301d, and the extrusion block 301g is located on one side of the movable plate 301c.

[0038] There are two supporting legs 301a, which are respectively arranged on both sides of the measuring instrument body 102. When the desktop is tilted to make the inner hanging frame 201g and the outer hanging frame 201h move, the extrusion block 301g can be moved at this time. The extrusion block 301g is set as an inclined surface. There are two moving plates 301c, which are both set on one side of the extrusion block 301g. One end of the moving plate 301c is set as an inclined surface. The movement of the extrusion block 301g can squeeze the moving plate 301c to make the two moving plates 301c move toward each other. The movement of the moving plate 301c drives the moving column 301b to move. The movement of the moving column 301b can drive the supporting legs 301a to move. At this time, the supporting legs 301a can be extended out of the base 103 to strengthen the support for the measuring instrument body 102 and prevent the measuring instrument body 102 from collapsing.

[0039] There are two sliders 301d, both of which are fixed on the top of the moving plate 301c. When the moving plate 301c moves, the slider 301d can be driven to move. The movement of the slider 301d can apply a pulling force to the first spring 301f. When the measuring instrument body 102 is not needed, the user can squeeze the two supporting legs 301a to retract them, and then the supporting legs 301a are returned to their original positions through the rebound force of the first spring 301f. The elastic force of the first spring 301f is small, and it only supports the supporting legs 301a. The positioning rod 301e is fixed to the inner wall of the base 103. The positioning rod 301e can be set to support the slider 301d to prevent the slider 301d from deviating.

[0040] Example 2

[0041] Reference Figures 1 to 11 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0042] Specifically, the correction component 200 also includes a connecting piece 202, which is arranged on the correction piece 201, and a baffle frame 202a is sleeved on the outside of the counterweight block 201a, the baffle frame 202a and the counterweight block 201a are movably connected, a supporting ball 202b is fixed to the inner wall of the baffle frame 202a, and a connecting plate 202c is fixed to one side of the movable shell 201b, and the connecting plate 202c is arranged on the top of the supporting ball 202b.

[0043] The counterweight 201a can be protected by the setting of the baffle frame 202a. When the baffle frame 202a is protecting the counterweight 201a, the connecting plate 202c will be on the top of the supporting ball 202b. When the desktop is tilted, the movable shell 201b still has a certain amount of movable space to detect whether the measuring instrument body 102 is in a horizontal state. If the measuring instrument body 102 is in a tilted state and the baffle frame 202a is in a tilted state, the movable shell 201b is still in a vertical state due to the setting of the counterweight 201a, and then the counterweight 201a falls to make the measuring head 101 in a horizontal state.

[0044] A swing rod is arranged on the inner wall of the baffle frame 202a, and the swing rod is hinged to the inner wall of the baffle frame 202a. A reset torsion spring is fixed on one side of the swing rod, and the reset torsion spring is fixed to the inner wall of the baffle frame 202a. An inclined rod is fixed on the bottom of the support sleeve 302b. When the baffle frame 202a moves, the inclined rod can squeeze the swing rod to make it move, and at this time, one end of the swing rod can be separated from the bottom of the counterweight 201a. Since the inclined rod is arranged as an inclined plane, the angle of the swing rod can be moved to a large extent when squeezing the swing rod. When one end of the swing rod is separated from the bottom of the counterweight 201a, the counterweight The weight block 201a can fall, and when the baffle frame 202a returns to its original position, the inclined rod will gradually release the squeeze on the rocker arm, and then the rocker arm will be driven to rotate by the force of the reset torsion spring. The rotation of the rocker arm can squeeze the bottom of the counterweight block 201a to move it upward, and then the rotation force of the first torsion spring 201e can drive the reel 201d to rotate to reel in the hanging rope 201c. At this time, the counterweight block 201a can return to its original position, and then the baffle frame 202a will drive the supporting ball 202b to move to the bottom of the connecting plate 202c.

[0045] Specifically, a protective cover 202d is fixed to one side of the baffle frame 202a, a pulley 202e is arranged inside the protective cover 202d, the pulley 202e is hinged to the inner wall of the protective cover 202d, a squeezing ball 202f is arranged at one end of the pulley 202e, an elastic plate 202g is fixed to the top of the squeezing ball 202f, a positioning block 202h is fixed to one end of the elastic plate 202g, and the positioning block 202h is fixed to the inner wall of the protective cover 202d.

[0046] When the blocking frame 202a moves to separate the supporting ball 202b from the connecting plate 202c, the protective cover 202d will move to the side of the counterweight block 201a, and the counterweight block 201a will move to the side of the pulley 202e. An arc-shaped slot is provided at one end of the pulley 202e. The pulley 202e can be rotated by moving the counterweight block 201a to the side of the pulley 202e. The rotation of the pulley 202e drives the arc-shaped slot to rotate. When the arc-shaped slot rotates, the squeezing ball 202f can be squeezed. At this time, the squeezing force can be applied to the elastic plate 202g. When the next arc-shaped slot rotates to the side of the squeezing ball 202f, The rebound of the elastic plate 202g can make the squeezing ball 202f engage with the arc groove, so that the reciprocating rotation of the pulley 202e can be damped, so that the counterweight block 201a can slowly descend. The radius of the counterweight block 201a is the same as the radius of the moving shell 201b. The same is true when the moving shell 201b moves to the side of the pulley 202e, to prevent the counterweight block 201a from descending too fast and causing shaking. There are two positioning blocks 202h, both of which are fixed to the inner wall of the protective cover 202d. The setting of the positioning blocks 202h can support the elastic plate 202g to prevent the elastic plate 202g from deviating.

[0047] Specifically, a trigger plate 202i is provided on the top of the outer suspension frame 201h, a support bar 202j is fixed to one side of the trigger plate 202i, and a second spring 202k is fixed to the top of the support bar 202j.

[0048] The bottom of the trigger plate 202i is set as an inclined surface. When the outer hanging frame 201h or the inner hanging frame 201g moves, the trigger plate 202i can be squeezed to move it. The movement of the trigger plate 202i can move the support bar 202j. The support bar 202j is plugged into the inner wall of the measuring instrument body 102. The support bar 202j is movably connected to the measuring instrument body 102. The movement of the support bar 202j can apply a squeezing force to the second spring 202k. The second spring 202k is fixed to the inner wall of the measuring instrument body 102. The blocking frame 202a can be moved, and when the supporting leg 301a is stored, the movable plate 301c can be driven to squeeze the squeezing block 301g, and then the blocking frame 202a is driven to return to its original position, and then the dust cover on one side of the measuring head 101 is installed. After the installation is completed, the trigger plate 202i can be squeezed to make the trigger plate 202i squeeze the inner hanging frame 201g and the outer hanging frame 201h to make the two in a horizontal position. At the same time, the rebound force of the second spring 202k can make the supporting bar 202j return to its original position.

[0049] Specifically, the support assembly 300 also includes a moving part 302, which is arranged on the support assembly 300. A moving rod 302a is fixed to one side of the baffle frame 202a. A support sleeve 302b is sleeved on the outer side of the moving rod 302a. A third spring 302c is fixed to the inner wall of the support sleeve 302b. The third spring 302c is fixed to one end of the moving rod 302a.

[0050] When the support leg 301a is stored and drives the moving plate 301c to squeeze the extrusion block 301g, the extrusion block 301g will drive the moving rod 302a to move. The movement of the moving rod 302a can apply a pulling force to the third spring 302c. At this time, the movement of the moving rod 302a can drive the blocking frame 202a to return to its original position. The support sleeve 302b is inserted into one side of the base 103. The setting of the support sleeve 302b can support the moving rod 302a to prevent the moving rod 302a from deviating.

[0051] Specifically, an extrusion rod 302d is fixed at one end of the moving rod 302a, the extrusion rod 302d is inserted into one side of the support sleeve 302b, the extrusion rod 302d and the support sleeve 302b are movably connected, and the extrusion rod 302d is fixed to one side of the extrusion block 301g.

[0052] When the squeezing block 301g moves, it will drive the squeezing rod 302d to move. The movement of the squeezing rod 302d can drive the moving rod 302a to move. The movement of the moving rod 302a can drive the blocking frame 202a to return to its original position.

[0053] Example 3

[0054] Reference Figures 1 to 11 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0055] Specifically, a fourth spring 302e is fixed to the inner wall of the moving rod 302a, an inclined surface block 302f is fixed to one end of the fourth spring 302e, and a limiting groove X corresponding to the inclined surface block 302f is opened on the inner wall of the supporting sleeve 302b.

[0056] When the moving rod 302a moves and drives the blocking frame 202a to return to its original position, it will drive the inclined surface block 302f to move. After the inclined surface block 302f is moved to the top of the limiting groove X, the rebound force of the fourth spring 302e drives the inclined surface block 302f to engage with the limiting groove X, so that the moving rod 302a can be limited to prevent the moving rod 302a from moving excessively and falling off from the supporting sleeve 302b. When the rebound force of the third spring 302c drives the moving rod 302a to return to its original position, since the limiting groove X is set as an inclined surface, the limiting groove X will not limit the inclined surface block 302f when the moving rod 302a returns to its original position. At this time, the inclined surface block 302f will be separated from the limiting groove X, and when separated from the limiting groove X, a squeezing force can be applied to the fourth spring 302e.

[0057] Specifically, a tooth plate 302g is provided on the top of the moving rod 302a, a gear 302h is fixed on the top of the tooth plate 302g, the tooth plate 302g and the gear 302h are meshed, a fixed plate 302i is provided on one side of the gear 302h, the gear 302h and the fixed plate 302i are rotatably connected through a rotating shaft, and the fixed plate 302i is fixed to the top of the protective cover 202d.

[0058] When moving, the moving rod 302a can drive the tooth plate 302g to move, and the movement of the tooth plate 302g can drive the gear 302h to rotate. When the gear 302h is limited, the moving rod 302a can be limited to prevent the rebound force of the third spring 302c from driving the moving rod 302a to move. The fixed plate 302i is used to support the gear 302h to prevent the gear 302h from deviating.

[0059] Specifically, a limiting wheel 302j is fixed on one side of the gear 302h, a limiting rod 302k is arranged on the top of the limiting wheel 302j, and the limiting rod 302k is fixed to the bottom of the supporting bar 202j.

[0060] A positioning groove corresponding to the limiting rod 302k is provided on the limiting wheel 302j. When the trigger plate 202i moves, it drives the supporting bar 202j to move. At this time, the limiting rod 302k can be driven to separate from the limiting wheel 302j, thereby releasing the limit on the gear 302h. At this time, the rebound force of the third spring 302c can drive the moving rod 302a to move. When the moving rod 302a moves and applies a squeezing force to the third spring 302c, the limiting wheel 302j can be reversed. The positioning groove on the limiting wheel 302j is set as an inclined plane, and the limiting rod 302k is also set as an inclined plane. At this time, it will not affect the moving rod 302a from applying a squeezing force to the third spring 302c.

[0061] Specifically, it also includes a main body component 100, which is arranged on the correction part 201, including a measuring head 101, a measuring instrument body 102 and a base 103. The measuring head 101 is fixed to the top of the support tube 201f, the measuring instrument body 102 is arranged on one side of the external suspension frame 201h, and the base 103 is fixed to the bottom of the measuring instrument body 102.

[0062] The measuring instrument body 102 is an instrument that uses laser technology to accurately measure the displacement change of an object. A thread is set on the measuring head 101 for installing a dust cover to prevent impurities from damaging the optical elements, sensors, etc. of the measuring head 101. The measuring head 101 is used to emit laser to measure the target object. The base 103 is used to support and stabilize the entire measuring instrument body 102 so that the measuring instrument body 102 can remain stable when placed on a desktop or platform.

[0063] When in use, the measuring instrument body 102 is placed on a desktop or platform. When it tilts, the measuring instrument body 102 as a whole will tilt first, and the connecting plate 202c will be on the top of the supporting ball 202b. At this time, the connecting plate 202c will not tilt, and there is still a certain amount of activity space in the blocking frame 202a. At this time, the measuring head 101 will remain relatively stable. Then, due to the tilt, the inner hanging frame 201g and the outer hanging frame 201h will move toward the relative tilt angle. When the inner hanging frame 201g and the outer hanging frame 201h move, they can squeeze the trigger plate 202i to make it move. The movement of the trigger plate 202i can make the support bar 202j move. The movement of the support bar 202j can apply a squeezing force to the second spring 202k. When the support bar 202j moves, it can drive the limit rod 302k to move and separate from the limit wheel 302j, thereby releasing the gear 30 2h limit, and then the rebound force of the third spring 302c can drive the moving rod 302a to move, and when the moving rod 302a moves, it can drive the squeezing rod 302d to move, and the movement of the squeezing rod 302d can drive the squeezing block 301g to move, and the movement of the squeezing block 301g can squeeze the moving plate 301c to make the two moving plates 301c move toward each other, and when the moving plate 301c moves, it can drive the slider 301d to move, and the movement of the slider 301d can apply a pulling force to the first spring 301f, and the movement of the moving plate 301c drives the moving column 301b to move, and the movement of the moving column 301b can drive the supporting leg 301a to move, and at this time, the supporting leg 301a can be extended out of the base 103 to strengthen the support for the measuring instrument body 102 and prevent the measuring instrument body 102 from collapsing due to the tilt of the desktop or platform.

[0064] When the moving rod 302a moves, the blocking frame 202a can be driven to move. When the blocking frame 202a moves, the inclined rod can squeeze the swing rod to make it move. At this time, one end of the swing rod can be separated from the bottom of the counterweight 201a. Since the inclined rod is set as an inclined surface, the angle of the swing rod can be greatly moved when squeezing the swing rod. When one end of the swing rod is separated from the bottom of the counterweight 201a, the counterweight 201a can fall. When the counterweight 201a falls, it can drive the moving shell 201b to move. When the hanging rope 201c is unwound, the moving shell 201b moves to drive the hanging rope 201c to move. When the hanging rope 201c is unwound, it can drive the reel 201d to rotate. The rotation of the reel 201d can apply a torsional force to the first torsion spring 201e, so that the counterweight 201a is suspended in the air, so that the support tube 201f is in a horizontal position, and then the measuring head 101 is in a horizontal position to measure the object. When the baffle frame 202a moves, it will drive the protective cover 202d to move to the counterweight 201a. When the counterweight block 201a moves to the side of the pulley 202e, the pulley 202e can be rotated by moving the counterweight block 201a to the side of the pulley 202e. The rotation of the pulley 202e drives the arc slot to rotate. When the arc slot rotates, the squeezing ball 202f can be squeezed. At this time, the squeezing force can be applied to the elastic plate 202g. When the next arc slot rotates to the side of the squeezing ball 202f, the squeezing ball 202f can be squeezed by the rebound of the elastic plate 202g. It engages with the arc-surface slot, so that the pulley 202e can be damped when it rotates reciprocatingly, so that the counterweight 201a can slowly descend. The radius of the counterweight 201a is the same as the radius of the moving shell 201b. The same is true when the moving shell 201b moves to the side of the pulley 202e. The counterweight 201a will descend to the bottom of the protective cover 202d and stop descending, so that the support tube 201f can be in a horizontal position, and then the measuring head 101 can be in a horizontal position to measure the object.

[0065] When the measuring instrument body 102 needs to be recovered, the user can recover the supporting leg 301a into the base 103, and the moving plate 301c can be driven to squeeze the squeezing block 301g, and the squeezing block 301g can drive the squeezing rod 302d to move, and the movement of the squeezing rod 302d can drive the moving rod 302a to move, and the movement of the moving rod 302a can apply a pulling force to the third spring 302c, and the movement of the moving rod 302a drives the blocking frame 202a to return to its original position, and drives the inclined surface block 302f to move, and after the inclined surface block 302f is moved to the top of the limiting groove X, the rebound force of the fourth spring 302e drives the inclined surface block 302f to engage with the limiting groove X, so that the moving rod 302a can be limited to prevent the moving rod 302a from moving excessively and falling off from the supporting sleeve 302b, and then the blocking frame 202a will return to its original position, and the inclined surface rod will gradually be released. The swing rod is squeezed, and then the swing rod is driven to rotate by the force of the return torsion spring. The bottom of the counterweight block 201a can be squeezed by the rotation of the swing rod to make it move upward. Then, the reel 201d is driven to rotate by the force of the first torsion spring 201e to reel in the hanging rope 201c. At this time, the counterweight block 201a can be returned to its original position. Then, the blocking frame 202a will drive the supporting ball 202b to move to the bottom of the connecting plate 202c. Then, the dust cover on one side of the measuring head 101 is installed. After the installation is completed, the trigger plate 202i can be squeezed to make the trigger plate 202i squeeze the inner hanging frame 201g and the outer hanging frame 201h to make the two in a horizontal position. At the same time, the rebound force of the second spring 202k can make the support bar 202j return to its original position, so that the limit rod 302k is engaged with the limit wheel 302j for the next use. The dust cover can be removed before the next use.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser displacement measuring instrument, characterized in that: include, The correction component (200) comprises a correction piece (201), a counterweight (201a), a movable shell (201b), a hanging rope (201c), a reel (201d), a first torsion spring (201e), a support tube (201f), an inner hanging frame (201g) and an outer hanging frame (201h), wherein the movable shell (201b) is fixed to the top of the counterweight (201a), the hanging rope (201c) is fixed to the inner wall of the movable shell (201b), and the reel (201d) is located at the inner wall of the movable shell (201b). Inside the hanging rope (201c), the support tube (201f) is sleeved on the outside of the reel (201d), the support tube (201f) is rotatably connected to the inner wall of the reel (201d) via a rotating shaft, one end of the first torsion spring (201e) is fixed to one side of the reel (201d), and the other end is fixed to the inner wall of the support tube (201f), the inner hanging frame (201g) is hinged to the support tube (201f), and the outer hanging frame (201h) is hinged to the inner hanging frame (201g); A support assembly (300) is arranged on one side of the correction member (201), comprising a support member (301), including a support leg (301a), a movable column (301b), a movable plate (301c), a slider (301d), a positioning rod (301e), a first spring (301f) and an extrusion block (301g), wherein the support leg (301a) is located on one side of the correction member (201), and the movable column (301b) is fixed to one side of the support leg (301a). The movable plate (301c) is fixed to one end of the movable column (301b), the slider (301d) is fixed to the top of the movable plate (301c), the positioning rod (301e) is plugged into one side of the slider (301d), the positioning rod (301e) and the slider (301d) are movably connected, the first spring (301f) is fixed to one side of the slider (301d), and the extrusion block (301g) is located on one side of the movable plate (301c).

2. The laser displacement measuring instrument according to claim 1, characterized in that: The correction component (200) further comprises a connecting member (202) which is arranged on the correction member (201); a retaining frame (202a) is sleeved on the outer side of the counterweight block (201a); the retaining frame (202a) and the counterweight block (201a) are movably connected; a supporting ball (202b) is fixed to the inner wall of the retaining frame (202a); a connecting plate (202c) is fixed to one side of the movable shell (201b); and the connecting plate (202c) is arranged on the top of the supporting ball (202b).

3. The laser displacement measuring instrument according to claim 2, characterized in that: A protective cover (202d) is fixed on one side of the baffle frame (202a), a pulley (202e) is arranged inside the protective cover (202d), the pulley (202e) is hinged to the inner wall of the protective cover (202d), a squeezing ball (202f) is arranged at one end of the pulley (202e), an elastic plate (202g) is fixed on the top of the squeezing ball (202f), a positioning block (202h) is fixed at one end of the elastic plate (202g), and the positioning block (202h) is fixed to the inner wall of the protective cover (202d).

4. The laser displacement measuring instrument according to claim 3, characterized in that: A trigger plate (202i) is arranged on the top of the outer suspension frame (201h), a support bar (202j) is fixed on one side of the trigger plate (202i), and a second spring (202k) is fixed on the top of the support bar (202j).

5. The laser displacement measuring instrument according to claim 4, characterized in that: The support assembly (300) further comprises a moving member (302) which is arranged on the support assembly (300); a moving rod (302a) is fixed to one side of the blocking frame (202a); a supporting sleeve (302b) is sleeved on the outer side of the moving rod (302a); a third spring (302c) is fixed to the inner wall of the supporting sleeve (302b); and the third spring (302c) is fixed to one end of the moving rod (302a).

6. The laser displacement measuring instrument according to claim 5, characterized in that: An extrusion rod (302d) is fixed to one end of the moving rod (302a), the extrusion rod (302d) is plugged into one side of the support sleeve (302b), the extrusion rod (302d) and the support sleeve (302b) are movably connected, and the extrusion rod (302d) is fixed to one side of the extrusion block (301g).

7. The laser displacement measuring instrument according to claim 5 or 6, characterized in that: A fourth spring (302e) is fixed on the inner wall of the moving rod (302a), a slope block (302f) is fixed on one end of the fourth spring (302e), and a limiting groove (X) corresponding to the slope block (302f) is opened on the inner wall of the support sleeve (302b).

8. The laser displacement measuring instrument according to claim 7, characterized in that: A toothed plate (302g) is provided on the top of the moving rod (302a), a gear (302h) is fixed on the top of the toothed plate (302g), the toothed plate (302g) and the gear (302h) are meshed, a fixed plate (302i) is provided on one side of the gear (302h), the gear (302h) and the fixed plate (302i) are rotatably connected via a rotating shaft, and the fixed plate (302i) is fixed to the top of the protective cover (202d).

9. The laser displacement measuring instrument according to claim 8, characterized in that: A limiting wheel (302j) is fixed on one side of the gear (302h), a limiting rod (302k) is arranged on the top of the limiting wheel (302j), and the limiting rod (302k) is fixed to the bottom of the support bar (202j).

10. The laser displacement measuring instrument according to claim 8 or 9, characterized in that: It also includes a main body component (100) which is arranged on the correction piece (201), and includes a measuring head (101), a measuring instrument body (102) and a base (103); the measuring head (101) is fixed to the top of the support tube (201f); the measuring instrument body (102) is arranged on one side of the outer hanging frame (201h); and the base (103) is fixed to the bottom of the measuring instrument body (102).

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