Triangular support frame for engineering surveying

Abstract

The invention relates to the technical field of engineering surveying, in particular to a triangular supporting frame for engineering surveying, which comprises a frame disc, a mounting frame for mounting a measuring instrument is connected above the frame disc, three supporting rods are connected below the frame disc and are arranged in a circumferential array, each supporting rod comprises an inner rod and an outer rod, and the outer rods are connected with the supporting rods. The end, away from the frame disc, of the outer rod is provided with an insertion groove, the end, provided with the insertion groove, of the outer rod is rotationally connected with a rotating ring, the inner wall of the rotating ring is provided with internal threads, the outer surface of the inner rod is provided with threads, and the inner rod is in threaded connection with the transmission ring and inserted into the insertion groove. And the effect that the triangular supporting frame can support the measuring equipment more stably is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering measurement, and in particular to a tripod support frame for engineering measurement. Background Art

[0002] The tripod bracket mainly utilizes the stability principle of the triangle. When external force acts on the tripod bracket, the three corners can evenly disperse the force, so that the bracket can firmly support the object and is not prone to deformation or collapse.

[0003] Therefore, in engineering surveying, most people use a tripod to support the measuring equipment. However, during construction, the ground at the construction site is rugged and uneven, and it is difficult for existing tripods to be leveled, resulting in the measuring equipment not being able to be leveled, which in turn leads to errors in the measurement results, affecting the construction progress and quality. Summary of the invention

[0004] In order to enable the tripod to stably support the measuring equipment, the present application provides a triangular support frame for engineering measurement.

[0005] The above technical objectives of this application are achieved through the following technical solutions: A tripod support frame for engineering surveying comprises a frame plate, a mounting frame for mounting a measuring instrument is connected above the frame plate, three support rods are connected below the frame plate, and the three support rods are arranged in a circular array, the support rods comprise an inner rod and an outer rod, the outer rod is connected to the frame plate, a slot is provided at one end of the outer rod facing away from the frame plate, a rotating ring is rotatably connected at one end of the outer rod having the slot, an inner thread is provided on the inner wall of the rotating ring, a thread is provided on the outer surface of the inner rod, the inner rod is threadedly connected to a transmission ring, and the inner rod is inserted into the slot.

[0006] By adopting the above scheme, the operator can drive the inner rod to extend and retract along the slot by rotating the rotating ring, thereby adjusting the length of the support rod, so that the tripod can be placed flat on rugged ground, so that the tripod can stably support the measuring equipment.

[0007] Optionally, a rectangular groove is provided at the bottom of the slot, a rectangular rod is fixedly connected to the end of the inner rod, and the rectangular rod is slidably connected in the rectangular groove.

[0008] By adopting the above solution, the rectangular rod is set to slide in the rectangular groove, thereby limiting the rotation of the inner rod, making the extension and retraction of the support frame smoother.

[0009] Optionally, a support plate is connected to the side of the inner rod facing away from the outer rod, and the inner rod is hinged to the support plate.

[0010] By adopting the above solution and providing the support plate, the contact area between the support frame and the ground is increased, thereby making the support frame more stable. The support plate is hinged to the inner rod, so that the support plate can also contact the ground on an inclined plane.

[0011] Optionally, the frame plate is hinged to the support rod.

[0012] By adopting the above solution, the three support rods can be combined together after the support frame is used, so that the operator can move and store the support frame conveniently.

[0013] Optionally, a limit column is fixedly arranged at the center of the lower surface of the frame plate, a sliding cavity is opened inside the limit column, a sliding block is slidably connected in the sliding cavity, a sliding hole is opened in the side plate of the sliding cavity, and a connecting rod is hinged on the side surface of the sliding block, and the end of the connecting rod facing away from the sliding block passes through the sliding hole and is connected to the support rod, and one support rod is connected to another connecting rod, and when the sliding block slides in the sliding cavity, it drives the support rod to rotate around the hinge axis of the support rod and the frame plate.

[0014] By adopting the above scheme, when the support frame needs to be used, the operator only needs to rotate one of the support rods, and the support rod drives the slider to slide in the cavity through the connecting rod, thereby driving the other two support rods to rotate around the hinge axis, so that the three support rods are opened synchronously, so that the operator can put the support frame away more conveniently, and after use, the operator only needs to retract one support rod to drive the other two support rods to be retracted, making it more convenient for the operator to install and retract the support frame.

[0015] Optionally, a pin groove is provided on the inner wall of the sliding cavity, and a bayonet pin is slidably connected in the pin groove. One end of the bayonet pin close to the bottom of the pin groove is fixedly connected to a pin spring, and the end of the pin spring facing away from the pin is fixedly connected to the bottom of the pin groove, and the bayonet pin is inserted into one side of the sliding cavity and forms an inclined surface. When the support rod is fully opened, one end of the bayonet pin is inserted into the sliding cavity and clamps the slider, with the inclined surface of the bayonet pin facing away from the slider.

[0016] By adopting the above scheme, when the operator opens the support rod, the support rod drives the slider to slide in the sliding cavity, so that the slider completely presses the latch pin into the pin groove. When the support frame needs to be used, the operator only needs to rotate one of the support rods, and the support rod drives the slider to slide in the cavity through the connecting rod, thereby driving the other two support rods to rotate around the hinge axis, so that the three support rods are opened synchronously, so that the operator can put the support frame more conveniently. After use, the operator only needs to retract one support rod to drive the other two support rods to retract, making it more convenient for the operator to install and retract the support frame. When the support rod is fully opened, the pin spring rebounds and drives the latch pin to pass through the pin groove away from one end of the pin spring, so that the pin groove clamps the slider, so that the support rod remains in an open state, thereby making the support frame more stable.

[0017] Optionally, a first spring is provided in the sliding cavity, one end of the first spring is fixedly connected to the sliding block, and the other end of the first spring is fixedly connected to the inner wall of the sliding cavity, and when the first spring is at its original length, the support rod is in a retracted state.

[0018] By adopting the above solution, when the support rod needs to be folded, it is only necessary to press the latch into the pin slot, and then the first spring contracts to automatically shrink the support rod, so that the operator can fold the support frame more conveniently.

[0019] Optionally, the limiting column is provided with an unlocking hole at the lower end, the unlocking hole is connected to the pin slot, and an unlocking rod is slidably connected in the unlocking hole. A bevel groove is provided at the position of the bayonet pin opposite to the unlocking hole. When the unlocking rod is inserted into the bevel groove, the bayonet pin is driven to move in the direction of the compression pin spring, so that the bayonet pin is completely retracted into the pin slot. A spring cavity is provided on the inner wall of the unlocking hole, and a spring plate is slidably connected in the spring cavity. The spring plate is fixedly connected to the unlocking rod, and the spring plate is connected to a second spring.

[0020] By adopting the above scheme, when the support rod needs to be retracted, the operator can press the unlocking rod to insert the unlocking rod into the inclined groove, so that the locking pin is completely retracted into the pin groove, the first spring contracts, and the slider slides in the sliding cavity, driving the support rod to be retracted. The operator then releases the unlocking rod, and the second spring rebounds, causing the unlocking rod to return to its original position.

[0021] Optionally, a placing plate is hingedly provided above the frame plate, the mounting frame is arranged above the placing plate, and a hinge position of the placing plate and the frame plate is located at the center of the frame plate, a sliding groove is provided above the frame plate and faces the center of the frame plate, a sliding block is slidably connected in the sliding groove, and a threaded rod is rotatably connected in the sliding groove, and a threaded hole is provided on the surface of the sliding block, the sliding slider passes through the threaded hole and is threadedly connected to the threaded rod, and the sliding block is hinged with a driving rod, and the driving rod is hinged to the placing plate at one end away from the sliding block, and a hinge axis between the driving rod and the placing plate is parallel to a hinge axis between the driving rod and the frame plate.

[0022] By adopting the above solution, the operator can rotate the threaded rod to drive the sliding block to move in the slide groove, thereby adjusting the angle of the placement plate and then adjusting the angle of the measuring device, and the threaded rod and the sliding block can be self-locking, so that the measuring device can maintain the angle.

[0023] In summary, this application has the following technical effects: 1. By setting up the rotating ring and the inner rod, the support rod can be retracted independently, so that the tripod can stably support the measuring equipment even on rough roads; 2. By setting the support plate, the contact area between the support frame and the ground is larger, making the support frame more stable; 3. By hingedly connecting the support rod to the frame plate, operators can more conveniently fold and transport the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2This is a partial structural cutaway diagram intended to emphasize the internal structure of the support rod in this application; Figure 3 This is a cutaway view intended to emphasize the internal structure of the limit column in this application; Figure 4 This application is intended to emphasize the partial structural cutaway view of the latch structure; Figure 5 This is a front view of a part of the structure where the disk is placed, which is intended to be emphasized by this application; Figure 6 This application intends to emphasize the top view of the partial structure where the disk is placed.

[0025] In the figure, 1, frame plate; 11, limiting column; 111, sliding cavity; 112, sliding hole; 113, pin groove; 114, unlocking hole; 115, spring cavity; 16, sliding groove; 2, support rod; 21, outer rod; 211, slot; 212, rotating ring; 213, rectangular groove; 22, inner rod; 221, rectangular rod; 222, support plate; 3, mounting frame; 4, slider; 41, connecting rod; 42, first spring; 5, latch; 51, pin spring; 52, inclined groove; 6, unlocking rod; 61, spring plate; 62, second spring; 7, placement plate; 71, driving rod; 72, sliding block; 73, threaded rod. DETAILED DESCRIPTION

[0026] The present application is further described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1 and Figure 2 A tripod support frame for engineering surveying includes a frame plate 1, a mounting frame 3 for mounting a measuring instrument is connected above the frame plate 1, three support rods 2 are connected below the frame plate 1, and the three support rods 2 are arranged in a circular array, the support rods 2 include an inner rod 22 and an outer rod 21, the outer rod 21 is connected to the frame plate 1, a slot 211 is provided at one end of the outer rod 21 away from the frame plate 1, and a rotating ring 212 is rotatably connected at one end of the outer rod 21 with the slot 211, an inner thread is provided on the inner wall of the rotating ring 212, a thread is provided on the outer surface of the inner rod 22, the inner rod 22 is threadedly connected to the transmission ring, and the inner rod 22 is inserted into the slot 211. The operator can drive the inner rod 22 to extend and retract along the slot 211 by rotating the rotating ring 212, thereby adjusting the length of the support rod 2, so that the tripod can be laid flat on a rugged ground, so that the tripod support frame can stably support the measuring equipment.

[0028] Reference Figure 2The bottom of the slot 211 is provided with a rectangular slot 213, and the end of the inner rod 22 is fixedly connected with a rectangular rod 221, and the rectangular rod 221 is slidably connected in the rectangular slot 213. The rectangular rod 221 is arranged to slide in the rectangular slot 213, thereby limiting the rotation of the inner rod 22, so that the extension and retraction of the support frame is smoother. The inner rod 22 is connected to a support plate 222 on the side away from the outer rod 21, and the inner rod 22 is hinged to the support plate 222. By providing the support plate 222, the contact area between the support frame and the ground is larger, so that the support frame can be more stable, and the support plate 222 is hinged to the inner rod 22, so that the support plate 222 can also contact the ground on the inclined surface.

[0029] Reference Figure 1 and Figure 3 The frame 1 is hinged with the support rod 2, and a limit column 11 is fixedly arranged at the center of the lower surface of the frame 1. A sliding cavity 111 is opened inside the limit column 11, and a slider 4 is slidably connected in the sliding cavity 111. A sliding hole 112 is opened on the side plate of the sliding cavity 111, and a connecting rod 41 is hinged on the side surface of the slider 4. The connecting rod 41 passes through the sliding hole 112 at one end away from the slider 4 and is connected to the support rod 2, and one support rod 2 is connected to a connecting rod 41. When the slider 4 slides in the sliding cavity 111, it drives the support rod 2 to rotate around the hinge axis of the support rod 2 and the frame 1. When the support frame needs to be used, the operator only needs to rotate one of the support rods 2, and the support rod 2 drives the slider 4 to slide in the cavity through the connecting rod 41, thereby driving the other two support rods 2 to rotate around the hinge axis, so that the three support rods 2 are opened synchronously, so that the operator can put the support frame away more conveniently, and after use, the operator only needs to retract one support rod 2 to drive the other two support rods 2 to be retracted, making it more convenient for the operator to install and retract the support frame.

[0030] Reference Figure 3 and Figure 4The inner wall of the slide cavity 111 is provided with a pin slot 113, and a bayonet 5 is slidably connected in the pin slot 113. The end of the bayonet 5 near the bottom of the pin slot 113 is fixedly connected with a pin spring 51, and the end of the pin spring 51 facing away from the pin is fixedly connected to the bottom of the pin slot 113, and the bayonet 5 is inserted into the slide cavity 111 and forms an inclined surface. When the support rod 2 is fully opened, one end of the bayonet 5 is inserted into the slide cavity 111 and clamps the slider 4, and the inclined surface of the bayonet 5 faces away from the slider 4. A first spring 42 is arranged in the slide cavity 111, one end of the first spring 42 is fixedly connected to the slider 4, and the other end of the first spring 42 is fixedly connected to the inner wall of the slide cavity 111. When the first spring 42 is at its original length, the support rod 2 is in a retracted state. When the operator opens the support rod 2, the support rod 2 drives the slider 4 to slide in the sliding cavity 111, so that the slider 4 completely presses the latch 5 into the pin groove 113. When the support frame needs to be used, the operator only needs to rotate one of the support rods 2, and the support rod 2 drives the slider 4 to slide in the cavity through the connecting rod 41, thereby driving the other two support rods 2 to rotate around the hinge axis, so that the three support rods 2 are opened synchronously, so that the operator can put the support frame more conveniently, and after use, the operator only needs to retract one support rod 2 to drive the other two support rods 2 to retract, so that the operator can install and retract the support frame more conveniently. When the support rod 2 is fully opened, the pin spring 51 rebounds and drives the latch 5 to pass through the pin groove 113 away from one end of the pin spring 51, so that the pin groove 113 clamps the slider 4, so that the support rod 2 remains in the open state, thereby making the support frame more stable.

[0031] Reference Figure 4 The limiting column 11 is provided with an unlocking hole 114 at the lower end, the unlocking hole 114 is communicated with the pin groove 113, and an unlocking rod 6 is slidably connected in the unlocking hole 114, and an inclined groove 52 is provided at the position of the bayonet 5 opposite to the unlocking hole 114. When the unlocking rod 6 is inserted into the inclined groove 52, the bayonet 5 is driven to move in the direction of the compression pin spring 51, so that the bayonet 5 is completely retracted into the pin groove 113, and a spring cavity 115 is provided on the inner wall of the unlocking hole 114, and a spring plate 61 is slidably connected in the spring cavity 115, the spring plate 61 is fixedly connected to the unlocking rod 6, and the spring plate 61 is connected to a second spring 62. When the support rod 2 needs to be retracted, the operator can press the unlocking rod 6 to insert the unlocking rod 6 into the inclined groove 52, so that the locking pin 5 is completely retracted into the pin groove 113, the first spring 42 contracts, and the slider 4 slides in the sliding cavity 111, driving the support rod 2 to be retracted. Then the operator releases the unlocking rod 6, and the second spring 62 rebounds, causing the unlocking rod 6 to return to its original position.

[0032] Reference Figure 5 and Figure 6, a placement plate 7 is hinged on the top of the rack 1, the mounting frame 3 is arranged above the placement plate 7, and the hinge position of the placement plate 7 and the rack 1 is located at the center of the rack 1, a slide groove 16 is provided above the rack 1 and faces the center of the rack 1, a sliding block 72 is slidably connected in the slide groove 16, and a threaded rod 73 is rotatably connected in the slide groove 16, and a threaded hole is provided on the surface of the sliding block 72, the sliding slider 4 is threadedly connected to the threaded rod 73 through the threaded hole, and the sliding block 72 is hinged with a driving rod 71, the driving rod 71 is hinged to the placement plate 7 at one end away from the sliding block 72, and the hinge axis of the driving rod 71 and the placement plate 7 is parallel to the hinge axis of the driving rod 71 and the rack 1. The operator can drive the slider 4 to move in the slide groove 16 by rotating the threaded rod 73, thereby adjusting the angle of the placement plate 7, and then adjusting the angle of the measuring device, and the threaded rod 73 and the slider 4 can be self-locking, so that the measuring device can maintain the angle.

[0033] The specific implementation principle of the present application is: when the bracket needs to be used, the operator can rotate one of the support rods 2 around the hinge axis, thereby driving the slider 4 to slide in the slide cavity 111 through the connecting rod 41, so that the three support rods 2 are opened at the same time. When the three support rods 2 are opened to the maximum, the pin 5 clamps the slider 4 to fix the support rods 2. Then the operator can adjust the length of each support rod 2 by rotating the rotating ring 212 to keep the support frame stable. Then the operator can drive the sliding block 72 to slide in the slide groove 16 by rotating the threaded rod 73, thereby adjusting the angle of the measuring equipment, so that the measuring equipment can measure more conveniently.

[0034] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed. However, as long as it is within the scope of the claims of the present application, it shall be protected by the patent law.

Claims

1. A tripod support frame for engineering surveying, characterized in that: The invention comprises a frame plate (1), wherein a mounting frame (3) for mounting a measuring instrument is connected to the upper part of the frame plate (1), and three support rods (2) are connected to the lower part of the frame plate (1), and the three support rods (2) are arranged in a circular array, and the support rods (2) comprise an inner rod (22) and an outer rod (21), and the outer rod (21) is connected to the frame plate (1), and a slot (211) is provided at one end of the outer rod (21) away from the frame plate (1), and a rotating ring (212) is rotatably connected to one end of the outer rod (21) where the slot (211) is provided, and an inner thread is provided on the inner wall of the rotating ring (212), and a thread is provided on the outer surface of the inner rod (22), and the inner rod (22) is threadedly connected to the transmission ring, and the inner rod (22) is inserted into the slot (211).

2. The tripod support frame for engineering surveying according to claim 1, characterized in that: The bottom of the slot (211) is provided with a rectangular slot (213), the end of the inner rod (22) is fixedly connected with a rectangular rod (221), and the rectangular rod (221) is slidably connected in the rectangular slot (213).

3. The tripod support frame for engineering surveying according to claim 1, characterized in that: A support plate (222) is connected to the side of the inner rod (22) facing away from the outer rod (21), and the inner rod (22) is hinged to the support plate (222).

4. The tripod support frame for engineering surveying according to claim 1, characterized in that: The frame plate (1) is hinged to the support rod (2).

5. The tripod support frame for engineering surveying according to claim 4, characterized in that: A limiting column (11) is fixedly arranged at the center of the lower surface of the frame plate (1), a sliding cavity (111) is provided inside the limiting column (11), a sliding block (4) is slidably connected in the sliding cavity (111), a sliding hole (112) is provided on the side plate of the sliding cavity (111), and a connecting rod (41) is hingedly connected to the side surface of the sliding block (4), one end of the connecting rod (41) away from the sliding block (4) passes through the sliding hole (112) and is connected to the support rod (2), and one support rod (2) is connected to one connecting rod (41), and when the sliding block (4) slides in the sliding cavity (111), it drives the support rod (2) to rotate around the hinge axis between the support rod (2) and the frame plate (1).

6. The tripod support frame for engineering surveying according to claim 5, characterized in that: The inner wall of the sliding cavity (111) is provided with a pin groove (113), a latch pin (5) is slidably connected in the pin groove (113), one end of the latch pin (5) close to the bottom of the pin groove (113) is fixedly connected with a pin spring (51), one end of the pin spring (51) facing away from the pin is fixedly connected to the bottom of the pin groove (113), and the latch pin (5) is inserted into one side of the sliding cavity (111) to form an inclined surface. When the support rod (2) is fully opened, one end of the latch pin (5) is inserted into the sliding cavity (111) and clamps the slider (4), and the inclined surface of the latch pin (5) faces the side away from the slider (4).

7. The tripod support frame for engineering surveying according to claim 6, characterized in that: A first spring (42) is arranged in the sliding cavity (111), one end of the first spring (42) is fixedly connected to the sliding block (4), and the other end of the first spring (42) is fixedly connected to the inner wall of the sliding cavity (111). When the first spring (42) is at its original length, the support rod (2) is in a retracted state.

8. The tripod support frame for engineering surveying according to claim 7, characterized in that: The limit column (11) is provided with an unlocking hole (114) at the lower end, the unlocking hole (114) is communicated with the pin groove (113), and an unlocking rod (6) is slidably connected in the unlocking hole (114), and an inclined groove (52) is provided on the bayonet pin (5) opposite to the unlocking hole (114). When the unlocking rod (6) is inserted into the inclined groove (52), the bayonet pin (5) is driven to move in the direction of compressing the pin spring (51), so that the bayonet pin (5) is completely retracted into the pin groove (113), and a spring cavity (115) is provided on the inner wall of the unlocking hole (114), and a spring plate (61) is slidably connected in the spring cavity (115), the spring plate (61) is fixedly connected to the unlocking rod (6), and the spring plate (61) is connected to a second spring (62).

9. The tripod support frame for engineering surveying according to claim 1, characterized in that: A placement plate (7) is hingedly connected above the frame plate (1), the mounting frame (3) is arranged above the placement plate (7), and the hinged position of the placement plate (7) and the frame plate (1) is located at the center of the frame plate (1), a slide groove (16) is provided above the frame plate (1) and faces the center of the frame plate (1), a sliding block (72) is slidably connected in the slide groove (16), and a threaded rod (73) is rotatably connected in the slide groove (16), and a threaded hole is provided on the surface of the sliding block (72), the threaded rod (73) passes through the threaded hole and is threadedly connected to the sliding block (72), and the sliding block (72) is hingedly connected to a driving rod (71), and the driving rod (71) is hingedly connected to the placement plate (7) at one end away from the sliding block (72), and the hinge axis of the driving rod (71) and the placement plate (7) is parallel to the hinge axis of the driving rod (71) and the frame plate (1).

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