A portable laser range finder

Abstract

The utility model provides a kind of portable laser range finder, it is related to laser range finder technical field, including including laser range finder body and installation box, the both sides of displacement groove are hinged with support leg, the support leg is connected with support mechanism, the support mechanism includes support sleeve, telescopic connecting rod, positioning swing bar and spring piece, one end of the positioning swing bar is connected with special-shaped wheel, the outer edge of the special-shaped wheel is equipped with resistance to touch sliding slot, the front side wall of the resistance to touch sliding slot is provided with resistance to touch inclined plane, the other end of the positioning swing bar is fixed with positioning rod, the side wall of the support sleeve is equipped with sliding slot hole, the lower end of the sliding slot hole is connected with a plurality of positioning slots in head and tail, the rear end of the spring piece is fixedly connected on telescopic connecting rod, the front end of the spring piece is slidably contacted on resistance to touch inclined plane. In the utility model, positioning can be kept by positioning rod in positioning slot Angle support of multiple gears of support leg, satisfy the multi-angle detection demand of laser range finder.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder technology, specifically a portable laser rangefinder. Background Technology

[0002] The core function of a laser rangefinder is to accurately measure the straight-line distance to a target object by emitting a laser beam and receiving the reflected signal.

[0003] CN222599828U discloses a portable laser rangefinder. When using the laser rangefinder body, the two support legs are swung apart to open up the body. The support rod is then moved so that the mounting box can support the laser rangefinder body. The support plate is then moved to support the support legs. This reduces the carrying space while increasing the convenience of use for workers.

[0004] However, the above technical solution requires the support rod to be locked in the limiting groove to position the support leg. Therefore, it can only keep the laser rangefinder body at a fixed measurement angle and cannot support multi-angle measurement in the actual measurement process. At the same time, the support leg and support rod need to be manually operated to position the bracket when assembling and disassembling the support leg, which is cumbersome. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a portable laser rangefinder, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A portable laser rangefinder includes a laser rangefinder body. A mounting box is installed on the outer side of the laser rangefinder body. A displacement groove is formed on the lower side of the mounting box. Cross-shaped support legs are hinged to both sides of the displacement groove. A support mechanism is connected to the middle of the support legs and the middle of the displacement groove. The support mechanism includes a support sleeve, a telescopic connecting rod, a positioning swing rod, and a spring plate. The upper end of the support sleeve is hinged to the middle of the displacement groove, and the lower end of the telescopic connecting rod is hinged to the middle of the support legs. The telescopic connecting rod is slidably installed inside the support sleeve. One end of the positioning swing rod is connected to a shaped wheel, which is rotatably connected to the rear end of the telescopic connecting rod. The other end of the positioning swing rod is fixed to a positioning rod. A sliding groove is formed on the side wall of the support sleeve. Several positioning grooves are connected to the lower end of the sliding groove. The positioning rod slides and abuts against the positioning groove. The rear end of the spring plate is fixedly connected to the telescopic connecting rod, and the front end extends downward at an angle. The front end of the spring plate slides and abuts against the side wall of the shaped wheel.

[0010] Preferably, the positioning groove includes a vertical part, a positioning part, and a sliding part. The vertical part is arranged on the rear side of the positioning groove and extends vertically downward. The positioning part is configured as a semi-circle connected to the lower side of the vertical part, with a radius equal to the outer diameter of the positioning rod. The sliding part is configured as an inclined arched structure connected to the vertical part of the next positioning groove.

[0011] Preferably, the outer edge of the irregular wheel is provided with an abutment groove, and the front side wall of the abutment groove is provided with an abutment slope, and the front end of the spring sheet slides and abuts against the abutment slope.

[0012] Preferably, the outer edge of the irregular wheel is provided with an unlocking slot, which is located on the front side of the contact slope. The front side of the spring sheet is bent with a locking part, which can be used to engage in the unlocking slot.

[0013] Preferably, a raised wedge is integrally formed on the rear side wall of the sliding groove, and a positioning slope is provided at the front end of the raised wedge, the front side of which is flush with the lower side wall of the sliding groove.

[0014] Preferably, the spring sheet has a support protrusion in the middle, and the inner wall of the support sleeve has a trapezoidal protrusion on the front side corresponding to the sliding groove hole. The front and rear side walls of the trapezoidal protrusion have reset slopes.

[0015] Preferably, a reset wedge is integrally formed on the front of the upper sidewall of the sliding slot, and an unlocking ramp is provided at the rear end of the reset wedge. The front side of the unlocking ramp is flush with the upper sidewall of the sliding slot.

[0016] (III) Beneficial Effects

[0017] This utility model provides a portable laser rangefinder. It has the following advantages:

[0018] 1. When a laser rangefinder needs to be carried in this utility model, the support leg can be folded into the displacement groove to reduce the overall volume and make it easy to carry.

[0019] 2. In this utility model, when the laser rangefinder is needed, the support leg is pulled. As the support leg rotates, the telescopic connecting rod slides and extends within the support sleeve. During the extension, the positioning swing rod is pulled to slide within the sliding groove. During the sliding process, the spring plate presses against the upper side of the contact slope of the shaped wheel's contact groove, so that the positioning swing rod can always remain in a downward state. That is, during the sliding process, the positioning rod at the end of the positioning swing rod will pass through the vertical part, positioning part, and sliding part of each positioning groove. When it is necessary to maintain this angle, the reaction force of the support leg will cause the positioning rod to contact the vertical part of the positioning groove to form a lock, which can keep the support leg fixed at this angle.

[0020] 3. When the support leg needs to be retracted, continue to rotate the support leg outward to extend the telescopic link. The positioning rod at the end of the positioning swing rod slides to the protruding wedge, pushing the positioning swing rod upward until the unlocking slot of the shaped wheel rotates to the lower end of the locking part at the front end of the spring plate. Under the elastic force of the spring plate, it is locked into the unlocking slot, so that the positioning swing rod can remain in the raised state. That is, the positioning rod will not fall back into the positioning slot and get stuck. The telescopic link can be completely reset. During the reset process, the reset slope of the trapezoidal protrusion can lift the support protrusion and raise the locking part to disengage from the unlocking slot, so that the positioning swing rod resets under the action of gravity, realizing the reset of the positioning swing rod, so that the support leg can be positioned next time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a portable laser rangefinder according to the present invention;

[0022] Figure 2 This is a schematic diagram of the support mechanism in Embodiment 1 of this utility model;

[0023] Figure 3 This is a cross-sectional view of the support sleeve in Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the support sleeve in Embodiment 2 of this utility model.

[0025] In the diagram: 1. Laser rangefinder body; 2. Mounting box; 3. Support leg one; 4. Support leg two; 5. Suction plate one; 6. Suction plate two; 7. Support sleeve; 8. Telescopic connecting rod; 9. Positioning swing rod; 10. Spring plate; 11. Sliding groove hole; 12. Positioning groove; 121. Vertical part; 122. Positioning part; 123. Sliding part; 13. Irregular wheel; 14. Abutment sliding groove; 15. Unlocking slot; 16. Positioning rod; 17. Raised wedge; 18. Support protrusion; 19. Trapezoidal protrusion; 20. Reset wedge; 21. Locking part. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Example 1: This embodiment of the present invention provides a portable laser rangefinder, such as... Figure 1-3As shown, the device includes a laser rangefinder body 1 and a mounting box 2. The mounting box 2 has a fixing groove on its upper side, which fits around the outside of the laser rangefinder body 1. The mounting box 2 has a displacement groove on its lower side. Two sets of support legs are hinged to each other on both sides of the displacement groove, and each support leg has a hinge shaft at its top, which is rotatably connected within the displacement groove. The two sets of support legs include a U-shaped support leg 3 and a T-shaped support leg 4 that interlock. The support legs 3 and 4 combine to form a frame structure that can be fully assembled. The entire structure is concealed within the displacement groove for easy portability. Several fastening grooves are formed on the inner wall of the displacement groove, and a suction tab 5 is glued and fixed within each groove. A suction tab 6, magnetically engaging with the suction tab 5, is fixed to the corresponding positions of the support legs 3 and 4. A fastening groove is provided on the upper side of each support leg, and the suction tab 6 is positioned within it, allowing it to be concealed. After the suction tab 5 is engaged, there is no protrusion, ensuring the support legs are completely engaged and fixed within the displacement groove, preventing them from falling out and achieving convenient portability.

[0028] like Figure 1-3 As shown, hinge blocks are respectively provided in the middle of the fastening groove and the middle of the displacement groove of the support leg. A support mechanism is rotatably connected between the two support blocks. The support mechanism includes a support sleeve 7, a telescopic connecting rod 8, a positioning swing rod 9, and a spring plate 10. A hinge shaft is provided at the upper end of the support sleeve 7 and the lower end of the telescopic connecting rod 8. The hinge shaft at the upper end of the support sleeve is hinged to the hinge block in the middle of the displacement groove, and the hinge shaft at the upper end of the support sleeve 7 is hinged to the hinge block in the middle of the fastening groove. When the support leg is retracted, the support sleeve 7 can be completely hidden in the fastening groove.

[0029] The side wall of the support sleeve 7 is provided with a sliding groove hole 11. The lower end of the sliding groove hole 11 is connected to a plurality of positioning grooves 12. The positioning grooves 12 communicate with the sliding groove hole 11. The positioning groove 12 includes a vertical part 121, a positioning part 122 and a sliding part 123. The vertical part 121 is arranged on the rear side of the positioning groove 12 and extends vertically downward. The positioning part 122 is configured as a semi-circle connected to the lower side of the vertical part 121. The sliding part 123 is configured as an inclined arched structure connected to the vertical part 121 of the next positioning groove 12.

[0030] The telescopic link 8 is slidably installed inside the support sleeve 7. A swing rod 9 groove is provided on the front side of the telescopic link 8, and a swing rod 9 shaft is fixed in the swing rod 9 groove.

[0031] The rear end of the positioning swing rod 9 is connected to a special-shaped wheel 13, which is rotatably connected to the shaft of the swing rod 9. The outer edge of the special-shaped wheel 13 is provided with an abutting groove 14 and an unlocking slot 15. The front side wall of the abutting groove 14 is provided with an abutting slope, and the unlocking slot 15 is located on the front side of the abutting slope. The front end of the positioning swing rod 9 is provided with a positioning rod 16, and the outer diameter of the positioning rod 16 is equal to the inner diameter of the positioning part 122 of the sliding groove hole 11.

[0032] The flange seat is connected to the groove of the swing rod 9. The front end of the flange seat has a spring slot. The rear end of the spring plate 10 is inserted into the spring slot. A through screw hole is opened on the side wall of the flange seat. A fixing bolt is threaded through the screw hole. The fixing bolt abuts against the side wall of the spring plate 10. The spring plate 10 extends downward from back to front. The front side of the spring plate 10 is bent with a locking part 21. The locking part 21 abuts against the abutting slope of the abutting groove 14 of the shaped wheel 13, providing downward pressure to the shaped wheel 13, the positioning swing rod 9 and the positioning rod 16. When the telescopic connecting rod 8 is pulled horizontally, the positioning rod 16 will slide along the side wall of the sliding groove 11 and the positioning groove 12.

[0033] like Figure 2-3 As shown, a raised wedge 17 is integrally formed on the rear side wall of the sliding slot 11. A positioning slope is provided at the front end of the raised wedge 17. The front side of the positioning slope is flush with the lower side wall of the sliding slot 11. When the positioning rod 16 slides to the position of the positioning slope, the positioning slope will lift the positioning rod 16, increasing the rotation angle of the irregular wheel 13 and the positioning swing rod 9. At this time, the unlocking slot 15 will rotate to face the spring plate 10. Under the elastic action of the spring plate 10, the locking part 21 falls back and engages with the unlocking slot 15 to form a lock, keeping the positioning swing rod 9 in the raised state. At this time, rotating the support leg in the opposite direction can make the telescopic connecting rod 8 and the positioning swing rod 9 slide smoothly back to the initial state along the sliding slot 11.

[0034] Further configured, a support protrusion 18 is provided in the middle of the spring sheet 10, and a trapezoidal protrusion 19 is provided on the inner wall of the support sleeve 7 corresponding to the front side of the sliding groove 11. The front and rear side walls of the trapezoidal protrusion 19 are provided with reset inclined surfaces. During the reset sliding process, when the support protrusion 18 of the spring sheet 10 slides to the position of the trapezoidal protrusion 19, the support protrusion 18 will be lifted upwards under the support of the reset inclined surface, causing the front end of the spring sheet 10 to tilt upwards. The locking part 21 will disengage from the unlocking slot 15, and the gravity of the positioning swing rod 9 will generate an eccentric downward force, causing the positioning swing rod 9 to fall. At this time, the irregular wheel 13 will reset, the unlocking slot 15 will be misaligned with the locking part 21, and the spring plate 10 will reset to abut against the abutment groove 14. At this time, the support protrusion 18 on the spring plate 10 is lower than the trapezoidal protrusion 19. When the telescopic linkage 8 is pulled forward, the trapezoidal protrusion 19 will not block the support protrusion 18 on the spring plate 10, and the next support process can be completed smoothly.

[0035] Example 2:

[0036] like Figure 4 As shown, a reset wedge 20 can be integrally formed on the front of the upper sidewall of the sliding slot 11 to replace the function of the support protrusion 18. The rear end of the reset wedge 20 is provided with an unlocking ramp. The front side of the unlocking ramp is flush with the upper sidewall of the sliding slot 11. During the reset process, the spring plate 10 locks the unlocking slot 15 of the shaped wheel 13, keeping the positioning rod 16 in the raised state. During the backward sliding process, it will first contact the unlocking ramp. The locking part 21 at the front end of the spring plate 10 is provided with a pressure ramp. By squeezing and pressing, the pressure ramp slides out of the unlocking slot 15, and the spring plate 10 pops out, realizing the unlocking of the shaped wheel 13 for the next support process.

[0037] Working principle:

[0038] Taking Example 1 as an example, during the use of the laser rangefinder of this utility model, pulling the support leg causes it to rotate outward and open in the displacement groove. The spring plate 10 tilts downward and presses against the contact slope of the contact groove 14 of the shaped wheel 13. The elasticity of the spring plate 10 keeps the shaped wheel 13 in a downward state. Rotating the support leg will slide and pull the telescopic connecting rod 8 in the support sleeve 7. The positioning swing rod 9 is kept downward under the action of the shaped wheel 13. The positioning rod 16 will slide into the positioning groove 12. At the vertical part 121 position, it will fall directly to the positioning part 122 position under the pressure of the spring plate 10. If the inclination of the positioning groove 12 is selected, the laser rangefinder will press down under the action of gravity. When the support leg is forced, the reaction force of the support leg will tend to push the telescopic link 8 to retract. The positioning rod 16 will abut against and lock into the vertical part 121, that is, keep the support leg locked at this angle. When it is necessary to continue pulling, the positioning rod 16 will slide along the sliding part 123 until it reaches the next positioning groove 12. During the sliding process, the locking part 21 of the spring plate 10 slides along the abutting slope of the abutting groove 14. However, due to the height setting, the locking part 21 will not slide into the unlocking groove 15. This can ensure that the support leg can be pulled at multiple angles. By selecting different angles of support leg 1 3 and support leg 2 4, the laser rangefinder body 1 can maintain different measurement angles.

[0039] When the vehicle needs to be moved after use, simply continue to manually pull the support leg outward until the positioning rod 16 at the end of the positioning lever 9 slides onto the positioning ramp that abuts the protruding wedge 17. The positioning ramp will raise the positioning rod 16 further, increasing the rotation angle of the shaped wheel 13 until the unlocking slot 15 is directly opposite the locking part 21 of the spring plate 10. The spring plate 10 resets, causing the locking plate to engage with the unlocking slot 15, keeping the shaped wheel 13 in this state, i.e., keeping the positioning rod 16 in the raised state. In this state, the height of the positioning rod 16 is always higher than the positioning groove 12. At this time, the positioning groove 12 will not engage the positioning rod 16, allowing the telescopic link 8 to retract and slide freely within the support sleeve 7. That is, when the support leg is rotated in the opposite direction to retract, the telescopic link 8 will not obstruct the movement, and the support leg can be smoothly retracted into the displacement groove.

[0040] In addition, during the retraction process, when the telescopic linkage 8 slides in the reverse direction, due to the support of the shaped wheel 13, the height of the support protrusion 18 in the middle of the spring plate 10 will be higher than the lower edge of the trapezoidal protrusion 19. During the reset sliding process, the support protrusion 18 first abuts against the reset slope of the trapezoidal protrusion 19, and under the support of the slope, the support protrusion 18 will be raised, causing the locking plate at the front end of the spring plate 10 to lift and disengage from the unlocking slot 15. After disengagement, due to the eccentric gravity formed by the shaped wheel 13, the positioning swing rod 9 and the positioning rod 16, it will rotate downward under this gravity, causing the unlocking slot 15 to rotate to be misaligned with the locking part 21 of the spring plate 10. That is, after the spring plate 10 is reset, it abuts against the abutting slope of the abutting groove 14 of the shaped wheel 13, and resets to the initial state.

[0041] In the initial state, the spring plate 10 is tilted. At this time, the height of the support protrusion 18 of the spring plate 10 is reduced to the lower side of the trapezoidal protrusion 19, so that the trapezoidal protrusion 19 will not obstruct the support protrusion 18 of the spring plate 10 during the next use, thus ensuring the smooth operation of the support mechanism.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable laser rangefinder, comprising a laser rangefinder body, characterized in that: A mounting box is installed on the outside of the laser rangefinder body. A displacement groove is opened on the lower side of the mounting box. Cross-shaped support legs are hinged to both sides of the displacement groove. A support mechanism is connected to the middle of the support legs and the middle of the displacement groove. The support mechanism includes a support sleeve, a telescopic connecting rod, a positioning swing rod, and a spring plate. The upper end of the support sleeve is hinged to the middle of the displacement groove, and the lower end of the telescopic connecting rod is hinged to the middle of the support leg. The telescopic connecting rod is slidably installed in the support sleeve. One end of the positioning swing rod is connected to a shaped wheel, which is rotatably connected to the rear end of the telescopic connecting rod. The other end of the positioning swing rod is fixed with a positioning rod. A sliding groove hole is opened on the side wall of the support sleeve. Several positioning grooves are connected to the lower end of the sliding groove hole. The positioning rod slides and abuts against the positioning groove. The rear end of the spring plate is fixedly connected to the telescopic connecting rod, and the front end extends downward at an angle. The front end of the spring plate slides and abuts against the side wall of the shaped wheel.

2. The portable laser rangefinder according to claim 1, characterized in that: The positioning groove includes a vertical part, a positioning part, and a sliding part. The vertical part is located on the rear side of the positioning groove and extends vertically downward. The positioning part is configured as a semi-circle connected to the lower side of the vertical part, with a radius equal to the outer diameter of the positioning rod. The sliding part is configured as an inclined arched structure connected to the vertical part of the next positioning groove.

3. A portable laser rangefinder according to claim 2, characterized in that: The outer edge of the irregular wheel is provided with an abutment groove, and the front side wall of the abutment groove is provided with an abutment slope, and the front end of the spring sheet slides and abuts against the abutment slope.

4. A portable laser rangefinder according to claim 3, characterized in that: The outer edge of the irregular wheel is provided with an unlocking slot, which is located on the front side of the contact slope. The front side of the spring sheet is bent with a locking part, which can be used to engage in the unlocking slot.

5. A portable laser rangefinder according to claim 4, characterized in that: A raised wedge is integrally formed on the rear side wall of the sliding groove, and a positioning slope is provided at the front end of the raised wedge. The front side of the positioning slope is flush with the lower side wall of the sliding groove.

6. A portable laser rangefinder according to claim 5, characterized in that: The spring sheet has a support protrusion in the middle, and the inner wall of the support sleeve has a trapezoidal protrusion on the front side corresponding to the sliding groove hole. The front and rear side walls of the trapezoidal protrusion have reset slopes.

7. A portable laser rangefinder according to claim 5, characterized in that: A reset wedge is integrally formed on the front of the upper sidewall of the sliding slot hole, and an unlocking ramp is provided at the rear end of the reset wedge. The front side of the unlocking ramp is flush with the upper sidewall of the sliding slot hole.

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