Transmission line fixing structure for phase type distance measuring device

Abstract

The utility model relates to the technical field of line fixing, specifically is a transmission line fixing structure of phase formula ranging device, the utility model discloses the machine body and the machine head of split type laser phase range finder and be used for connecting the transmission line of machine body and machine head, the vertical direction of machine body is set up and has back type female concave, and one end of transmission line can be wound in back type female concave, and passes through the inner wall of back type female concave and is connected to the inside of machine body, the bottom of machine head is set up and has movable cavity, and movable cavity is provided with movable block that can move horizontally, when utilizing machine head to measure the range of narrow space, can measure through the magnet adsorption on the outside iron shell, or directly place on the outside equipment and measure, and transmission line will not cause the pulling of machine head, need not hold the machine head and measure, avoid the influence that small amplitude hand shaking when holding the machine head causes to the measurement result.

Description

Technical Field

[0001] This utility model relates to the field of line fixing technology, specifically a transmission line fixing structure for a phase ranging device. Background Technology

[0002] Phase ranging is a technology device that achieves precise distance measurement based on the phase difference between emitted and reflected light. It is mainly used in engineering surveying, industrial inspection, and geological exploration. To facilitate use in confined spaces, phase ranging devices are designed with a separable body and head, which are connected by a transmission line.

[0003] In the prior art, such as the split-type laser phase rangefinder proposed in patent application number "CN202323204051.X", a transmission device is provided on the front side wall of the body. The transmission device includes a transmission line, which can connect the body and the rangefinder head to each other by electrical signal.

[0004] However, in the aforementioned patent application, the transmission line between the body and the head is fixed by a torsion spring to achieve automatic retraction and extension. However, when the torsion spring fixes the transmission line, it will continuously tighten the transmission line and apply tension to the head. This means that when using the head for distance measurement, the head needs to be held by hand. When holding the head for distance measurement, even slight hand tremors can affect the measurement results. Utility Model Content

[0005] The purpose of this invention is to provide a fixed structure for the transmission line of a phase ranging device to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions: A transmission line fixing structure for a phase ranging device includes a body and a head of a split laser phase ranging instrument, and a transmission line for connecting the body and the head. The body has a recessed groove in the vertical direction, and one end of the transmission line can be wound around the recessed groove and pass through the inner wall of the recessed groove to connect to the interior of the body. The bottom of the machine head has a movable cavity, and a movable block that can move horizontally is set inside the movable cavity. The movable block has a U-shaped groove inside, and the other end of the transmission line can pass through the U-shaped groove and the inner wall of the movable cavity to connect to the inside of the machine head.

[0007] Preferably, an adjusting spring is fixedly connected to one end of the inner wall of the movable cavity, one end of the adjusting spring is fixedly connected to the movable block, and a guide shaft is fixedly connected between the two sides of the inner wall of the movable cavity.

[0008] Preferably, a limiting groove is provided on one side of the machine head, and a limiting protrusion is fixedly connected to one side of the movable block, with the limiting protrusion and the limiting groove being slidably connected.

[0009] Preferably, the top of the machine body is provided with a docking slot, and the bottom of the machine head is fixedly connected with a docking block that cooperates with the docking slot.

[0010] Preferably, a fixing block is fixedly connected to one side of the machine head, and a fixing hole is provided on the fixing block.

[0011] Preferably, a mounting block is fixedly connected to one side of the machine body. The top of the mounting block has a rectangular groove that cooperates with the fixed block. A return spring is fixedly connected inside the mounting block. One end of the return spring is fixedly connected to a fixed shaft. One end of the fixed shaft passes through the mounting block and extends into the rectangular groove. The fixed shaft and the fixed hole are compatible. One end of the fixed shaft is fixedly connected to a pull rod. One end of the pull rod passes through the mounting block and extends to the outside of the mounting block.

[0012] The beneficial effects of this utility model are: This invention fixes the transmission line in a spiral-shaped recess on the body by winding it around. This allows the transmission line to be fixed when not in use and released when in use to connect the head and body, facilitating separation of the head and body. It is suitable for distance measurement in confined spaces. When using the head to measure distances in confined spaces, it can be attached to the external iron shell by magnet or placed directly on an external device. The transmission line will not pull on the head, eliminating the need to hold the head while measuring and avoiding the influence of slight hand tremors on the measurement results. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 Side view of the middle body; Figure 3 This is a utility model Figure 1 Schematic diagram of the structure at the bottom of the mid-section of the machine head; Figure 4 This is a utility model Figure 3 A cross-sectional view of the active block portion; Figure 5 This is a utility model Figure 1 A cross-sectional view of the mounting block portion.

[0014] The attached figures are labeled as follows: 1. Body; 101. Magnet; 2. Head; 3. Transmission line; 4. Recessed indentation; 5. Movable cavity; 6. Movable block; 601. U-shaped groove; 602. Limiting protrusion; 7. Adjusting spring; 8. Guide shaft; 9. Limiting slide groove; 10. Docking slot; 12. Docking block; 13. Fixing block; 131. Fixing hole; 14. Mounting block; 141. Rectangular groove; 15. Return spring; 16. Fixing shaft; 17. Pull rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1 and Figure 2 A fixed structure for the transmission line of a phase ranging device includes a body 1 and a head 2 of a split-type laser phase ranging instrument, and a transmission line 3 for connecting the body 1 and the head 2. The body 1, the head 2 and the transmission line 3 are all components of the split-type phase ranging device in the prior art. The electrical components and ranging methods inside the body 1 and the head 2, and how the transmission line 3 connects the body 1 and the head 2 and transmits signals will not be described in detail here.

[0017] The head 2 has magnets 101 embedded on both sides, which allow the head 2 to be attached to the outer iron shell for distance measurement when in use.

[0018] like Figure 1 and Figure 2 The body 1 has a recessed indentation 4 in the vertical direction. One end of the transmission line 3 can be wound around the recessed indentation 4 and pass through the inner wall of the recessed indentation 4 to connect to the inside of the body 1. The transmission line 3 can be wound around the body 1 multiple times, and there is a spare line to ensure the positional error of the winding and the connection with the head 2. like Figure 2 , Figure 3 and Figure 4The bottom of the head 2 is provided with a movable cavity 5, and a movable block 6 that can move horizontally is provided in the movable cavity 5. The movable block 6 has a U-shaped groove 601 inside. The other end of the transmission line 3 can pass through the U-shaped groove 601 and the inner wall of the movable cavity 5 to connect to the inside of the head 2. By using the transmission line 3 to pass through the U-shaped groove 601, it can not only be positioned, but also eliminate the need to fix the transmission line 3 and the movable block 6. When the movable block 6 moves, the transmission line 3 can pass through the movable block 6, and the length of the transmission line 3 between the movable block 6 and the inner wall of the head 2 can be adjusted.

[0019] like Figure 2 , Figure 3 and Figure 4 An adjusting spring 7 is fixedly connected to one end of the inner wall of the movable cavity 5. One end of the adjusting spring 7 is fixedly connected to the movable block 6. The adjusting spring 7 exerts a pulling force on the movable block 6 in the direction of the adjusting spring 7. A guide shaft 8 is fixedly connected between the two sides of the inner wall of the movable cavity 5. The guide shaft 8 serves to limit the transmission line 3. The transmission line 3 passes through the position above the guide shaft 8.

[0020] like Figure 3 A limiting groove 9 is provided on one side of the machine head 2, and a limiting protrusion 602 is fixedly connected to one side of the movable block 6. The limiting protrusion 602 and the limiting groove 9 are slidably connected. The limiting protrusion 602 can only move horizontally in the limiting groove 9, so that the movable block 6 fixed to the limiting protrusion 602 can also only move horizontally.

[0021] like Figure 1 , Figure 2 and Figure 3 The top of the machine body 1 is provided with a docking slot 10, and the bottom of the machine head 2 is fixedly connected with a docking block 12 that works with the docking slot 10. When the machine head 2 and the machine body 1 are close together, the docking block 12 can be inserted into the docking slot 10 to help clamp the machine body 1 and the machine head 2.

[0022] like Figure 1 A fixing block 13 is fixedly connected to one side of the machine head 2, and a fixing hole 131 is provided on the fixing block 13.

[0023] like Figure 1 , Figure 2 and Figure 5A mounting block 14 is fixedly connected to one side of the body 1. The top of the mounting block 14 has a rectangular groove 141 that works with the fixed block 13. A return spring 15 is fixedly connected inside the mounting block 14. One end of the return spring 15 is fixedly connected to a fixed shaft 16. One end of the fixed shaft 16 passes through the mounting block 14 and extends into the rectangular groove 141. The mounting block 14 has an opening to facilitate the passage of the fixed shaft 16. The fixed shaft 16 is compatible with the fixed hole 131. One end of the fixed shaft 16 is fixedly connected to a pull rod 17. One end of the pull rod 17 passes through the mounting block 14 and extends to the outside of the mounting block 14. The mounting block 14 has an opening to facilitate the passage of the pull rod 17.

[0024] Pulling the lever 17 moves the fixed shaft 16 into the mounting block 14. At this time, the machine head 2 is moved down, so that the bottom of the fixed block 13 is inserted into the rectangular groove 141. Then, the lever 17 is released, and the return spring 15 extends to push the fixed shaft 16. The fixed shaft 16 passes through the fixing hole 131 and clamps the mounting block 14 and the fixed block 13 together. At this time, the machine body 1 and the machine head 2 cannot be separated. Conversely, pulling the lever 17 causes the fixed shaft 16 to disengage from the fixing hole 131, which can separate the machine body 1 and the machine head 2, and cause the fixed block 13 and the mounting block 14 to separate.

[0025] The working principle of the transmission line fixing structure of the phase ranging device provided by this utility model is as follows: When the head 2 is pulled upward, the transmission line 3 will be tightened. At this time, the transmission line 3 will pull the movable block 6, causing the movable block 6 to move away from the adjusting spring 7, so that the head 2 can be separated from the body 1. Then, the head 2 is rotated around the concave 4 of the body 1 to release the transmission line 3 wrapped in the concave 4, thus separating the head 2 from the body 1. This makes it convenient to use the head 2 alone for distance measurement in confined spaces. After the measurement is completed, the machine head 2 rotates in the opposite direction around the concave 4 to wind the transmission line 3 into the concave 4. After winding, the machine head 2 is pulled to pull the movable block 6, which causes the adjusting spring 7 to extend, ensuring that there is enough transmission line 3 so that the machine head 2 can move smoothly to the top of the machine body 1 for installation and fixation. After the head 2 is installed on the body 1, the adjusting spring 7 retracts, which drives the movable block 6 to move and tighten the transmission line 3, so that the transmission line 3 will not become loose. Due to the slight difference in the position of the winding of the transmission line 3 each time, the length of the unwound part of the transmission line 3 will have slight differences. The unwound transmission line 3 will exert different degrees of tension on the movable block 6. By adjusting the extension and retraction of the spring 7, the different degrees of tension of the transmission line 3 on the movable block 6 can be adapted to ensure that the end of the transmission line 3 near the machine head 2 is always in a taut state.

[0026] Compared with related technologies, the transmission line fixing structure of the phase ranging device provided by this utility model has the following advantages: This invention fixes the transmission line 3 in a spiral-shaped recess 4 on the body 1 by winding it around. This allows the transmission line 3 to be fixed when not in use and released when in use to connect the head 2 and the body 1, facilitating the separation of the head 2 and the body 1. This is useful for distance measurement in confined spaces. When using the head 2 to measure distances in confined spaces, it can be attached to the external iron shell by magnet 101 or placed directly on an external device for measurement. The transmission line 3 will not pull on the head 2, eliminating the need to hold the head 2 for measurement and avoiding the influence of slight hand tremors on the measurement results.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A transmission line fixing structure for a phase ranging device, comprising a body (1) and a head (2) of a split-type laser phase rangefinder, and a transmission line (3) for connecting the body (1) and the head (2), characterized in that, The body (1) has a recessed groove (4) in the vertical direction. One end of the transmission line (3) can be wrapped around the recessed groove (4) and pass through the inner wall of the recessed groove (4) to connect to the interior of the body (1). The bottom of the head (2) is provided with a movable cavity (5), and a movable block (6) that can move horizontally is provided in the movable cavity (5). A U-shaped groove (601) is provided inside the movable block (6). The other end of the transmission line (3) can pass through the U-shaped groove (601) and the inner wall of the movable cavity (5) to connect to the inside of the head (2).

2. The transmission line fixing structure of the phase ranging device according to claim 1, characterized in that, An adjusting spring (7) is fixedly connected to one end of the inner wall of the movable cavity (5), and one end of the adjusting spring (7) is fixedly connected to the movable block (6). A guide shaft (8) is fixedly connected between the two sides of the inner wall of the movable cavity (5).

3. The transmission line fixing structure of the phase ranging device according to claim 2, characterized in that, A limiting groove (9) is provided on one side of the machine head (2), and a limiting protrusion (602) is fixedly connected to one side of the movable block (6). The limiting protrusion (602) and the limiting groove (9) are slidably connected.

4. The transmission line fixing structure of the phase ranging device according to claim 1, characterized in that, The top of the machine body (1) is provided with a docking slot (10), and the bottom of the machine head (2) is fixedly connected with a docking block (12) that works with the docking slot (10).

5. The transmission line fixing structure of the phase ranging device according to claim 1, characterized in that, A fixing block (13) is fixedly connected to one side of the machine head (2), and a fixing hole (131) is provided on the fixing block (13).

6. The transmission line fixing structure of the phase ranging device according to claim 5, characterized in that, A mounting block (14) is fixedly connected to one side of the body (1). A rectangular groove (141) is provided on the top of the mounting block (14) to cooperate with the fixed block (13). A reset spring (15) is fixedly connected inside the mounting block (14). A fixed shaft (16) is fixedly connected to one end of the reset spring (15). One end of the fixed shaft (16) passes through the mounting block (14) and extends into the rectangular groove (141). The fixed shaft (16) and the fixed hole (131) are compatible. A pull rod (17) is fixedly connected to one end of the fixed shaft (16). One end of the pull rod (17) passes through the mounting block (14) and extends to the outside of the mounting block (14).

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