A runway infrared induction timer convenient to carry

Abstract

The utility model discloses a runway infrared induction timer convenient to carry relates to infrared induction timer technical field, the utility model discloses a support still includes: the storage mechanism is arranged in the inside of support, the utility model discloses a storage mechanism is set up, and the specific is respectively anticlockwise rotation three support legs, and when rotating, the round bar of connecting rod bottom slides in the limiting groove, and the round bar will extrude the wedge and make it compression spring no.

Description

Technical Field

[0001] This utility model belongs to the field of infrared sensing timer technology, and in particular relates to a portable runway infrared sensing timer. Background Technology

[0002] A portable track infrared sensor timer is an electronic timing device used in sports competitions (especially sprint and track events) or training to automatically and accurately record athletes' performance. It utilizes the principle of infrared emission and reception and is designed with portability in mind so that it can be quickly deployed and transported in different venues. In actual use, the timer is used in conjunction with a tripod. Its main purpose is to allow the tripod to be quickly folded up when carried, reducing its size for easy transport, and to allow the tripod to be quickly deployed. In order to enable the tripod to be quickly deployed and stored, most existing technologies disassemble the tripod into a main support frame and three support legs. When carrying and deploying, tools are used to fix or loosen the support legs and support frame with bolts. Although this method can make the overall size of the tripod smaller and easier to carry and transport, the frequent tightening of bolts not only makes the operation cumbersome, but also time-consuming and laborious, greatly reducing the efficiency of use. Utility Model Content

[0003] The purpose of this invention is to provide a portable runway infrared sensor timer. By setting up a storage mechanism, specifically, the three support legs are rotated counterclockwise. During rotation, the round rod at the bottom of the connecting rod slides within the limiting groove. After the round rod contacts the wedge, it squeezes the wedge and compresses the first spring. When the round rod moves to its limit position, the first spring pushes the wedge back to its original position to limit the round rod's downward movement. The other three support legs operate similarly. For storage, the pull rod is pulled to allow the wedge to enter the fixed shell, and then the support legs are rotated clockwise until the second hinge seat contacts the outer wall of the bracket. The other three support legs operate similarly. This method allows for quick unfolding and folding of the three support legs when carrying and deploying the timer and bracket, is simple and convenient, and saves more space. It solves the problem that existing timers are often used with a tripod. To allow the tripod to be quickly unfolded and retracted, it is often divided into a main support frame and support legs. During use, multiple bolts need to be frequently tightened to fix or loosen the support legs and support frame, making the operation cumbersome, time-consuming, and labor-intensive, thus reducing its usability.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a portable infrared sensing timer for runways, comprising a bracket with an extension frame inside, a timer mounted on the top of the extension frame, and three support legs on the outside of the bracket. It also includes a storage mechanism located inside the bracket, used to unfold and retract the support legs, comprising three connecting rods, with a round rod fixedly connected to the bottom of each connecting rod. The support legs have an extension leg that slides and is limited within them. The bracket has three vertical slots inside, with limit grooves on the inner walls of the vertical slots. An adjustment mechanism is located on the outer surface of the extension leg, used to adjust the length of the extension leg extending beyond the support leg. The bottom of the outer surface of the extension frame has a threaded groove, and the inner wall of the bracket has threads, with the bracket and extension frame threadedly connected.

[0005] Furthermore, the storage mechanism includes three hinge seats, all of which are fixedly connected to the outer surface of the bracket, and the top of the support leg is hinged to the hinge seat; the three support legs are distributed in a ring at equal intervals on the outside of the bracket.

[0006] Furthermore, the adjustment mechanism includes three mounting cylinders, which are fixedly connected to the outer surface of the support leg. An adjustment rod is slidably limited to the inner wall of the mounting cylinder; the end of the adjustment rod near the extension leg is provided with a ball head.

[0007] Furthermore, each of the three supporting legs is fixedly connected to a second hinge seat on one side that is close to each other. The connecting rod is hinged to the second hinge seat, the connecting rod is slidably limited to the vertical groove, and the round rod is slidably limited to the limiting groove. The connecting rod and the vertical groove are interconnected. The length of the limiting groove is shorter than the length of the vertical groove. The round rod is used to prevent the connecting rod from detaching from the vertical groove.

[0008] Furthermore, three fixed shells are fixedly connected to the outer surface of the bracket. Each of the three fixed shells has a wedge block that slides and limits its movement on its inner wall. Each of the three wedge blocks has a pull rod fixedly connected to its opposite side. A spring is sleeved on the outside of the pull rod. The end of the spring away from the wedge block is fixedly connected to the inner wall of the fixed shell, and the end of the spring near the wedge block is fixedly connected to the wedge block. The inside of the fixed shell is connected to the limiting groove. The bottom of the wedge block is provided with an inclined surface. The pull rod is a T-shaped rod, which prevents the wedge block from completely entering the limiting groove. As a result, when the round rod moves upward in the limiting groove, the round rod can always be in contact with the inclined surface of the wedge block.

[0009] Furthermore, a ring is fixedly connected to the outer surface of the adjusting rod, and the ring slides and limits the movement with the inner wall of the mounting cylinder. A second spring is sleeved on the outer side of the adjusting rod, one end of the second spring is fixedly connected to the ring, and the other end of the second spring is fixedly connected to the inner wall of the mounting cylinder. The ring is used to support and install the second spring, and the ring can also prevent the adjusting rod from detaching from the mounting cylinder.

[0010] Furthermore, the outer surface of the extension leg is provided with several locking grooves, and the outer side of the extension leg is provided with a sliding groove. A stop block is fixedly connected to the inner wall of the locking groove. The locking grooves are evenly spaced and are interconnected with the sliding groove. The inner wall of the locking groove is adapted to the ball head of the adjusting rod. When the adjusting rod is inserted into the locking groove, the bottom of the inner wall of the locking groove is lower than the bottom of the sliding groove because the inner wall of the locking groove is adapted to the ball head of the adjusting rod. Therefore, when the adjusting rod is inserted into the locking groove, the stop block cannot contact the ball head of the adjusting rod. When the extension leg is rotated, the stop block cannot squeeze and push the adjusting rod.

[0011] This utility model has the following beneficial effects: This utility model features a storage mechanism. Specifically, the three support legs are rotated counterclockwise. During rotation, the round rod at the bottom of the connecting rod slides within the limiting groove. After the round rod contacts the wedge, it squeezes the wedge and compresses the first spring. When the round rod moves to its limit position, the first spring pushes the wedge back to its original position to limit the downward movement of the round rod. The other three support legs operate in the same way. When storing, the pull rod is pulled to allow the wedge to enter the fixed shell, and then the support legs are rotated clockwise until the second hinge seat contacts the outer wall of the bracket. The other three support legs operate in the same way. This method allows for quick unfolding and folding of the three support legs when carrying and deploying the timer and bracket, which is simple, convenient, and saves more space.

[0012] This utility model features an adjustment mechanism. Specifically, the adjustment rod is pulled away from the support leg, and then the extension leg is rotated clockwise. When the adjustment rod is aligned with the slide groove, it is released, and spring two pushes it into contact with the slide groove. Subsequently, the extension leg is pulled to slide within the support leg. After adjustment, the extension leg is rotated counterclockwise, and the stop block contacts the ball head of the adjustment rod and pushes it away from the support leg. Once the stop block is no longer in contact with the adjustment rod, spring two pushes it into the locking groove to fix the extension leg. When storing, the adjustment rod is pulled away from the support leg, and the extension leg is rotated clockwise and pushed into the support leg. The other two extension legs are adjusted in the same way. This design allows for individual adjustment of the length of the three extension legs extending beyond the support leg according to usage requirements, improving overall applicability.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the vertical groove structure of this utility model; Figure 3 This is a schematic diagram of the wedge block structure of this utility model; Figure 4 This is a schematic diagram of the limiting groove structure of this utility model; Figure 5 This is a schematic diagram of the ring structure of this utility model; Figure 6 This is a schematic diagram of the locking groove structure of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Bracket; 11. Extension frame; 12. Timer; 2. Storage mechanism; 21. Support leg; 211. Hinge seat one; 212. Hinge seat two; 213. Connecting rod; 214. Round rod; 22. Extension leg; 23. Vertical groove; 231. Limiting groove; 24. Fixing shell; 241. Wedge block; 242. Pull rod; 243. Spring one; 3. Adjustment mechanism; 31. Mounting cylinder; 32. Adjusting rod; 321. Ring; 322. Spring two; 33. Locking groove; 331. Stop block; 34. Slide groove. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6As shown, this utility model is a portable runway infrared sensor timer, including a bracket 1, an extension frame 11 inside the bracket 1, a timer 12 mounted on the top of the extension frame 11, and three support legs 21 on the outside of the bracket 1. It also includes a storage mechanism 2, which is located inside the bracket 1 and is used to unfold and retract the support legs 21. The storage mechanism 2 includes three connecting rods 213, with a round rod 214 fixedly connected to the bottom of each connecting rod 213. An extension leg 22 is slidably and limitly fitted inside the support leg 21. Three vertical grooves 23 are formed inside the bracket 1, with limit grooves 231 formed on the inner wall of each vertical groove 23. An adjustment mechanism 3 is located on the outer surface of the extension leg 22 and is used to adjust the length of the extension leg 22 extending beyond the support leg 21. A threaded groove is formed at the bottom of the outer surface of the extension frame 11, and threads are formed on the inner wall of the bracket 1. The bracket 1 and the extension frame 11 are threadedly connected. The storage mechanism 2 includes three hinge seats 211, all of which are fixedly connected to the outer surface of the bracket 1. The top of the support leg 21 is hinged to the hinge seat 211. The three support legs 21 are distributed in a ring at equal intervals on the outside of the bracket 1. The adjustment mechanism 3 includes three mounting cylinders 31, which are fixedly connected to the outer surface of the support leg 21. An adjustment rod 32 is slidably limited to the inner wall of the mounting cylinder 31. The end of the adjustment rod 32 near the extension leg 22 is ball-headed. The three support legs 21 are fixedly connected to hinge seats 212 on their adjacent sides. A connecting rod 213 is hinged to the hinge seat 212. The connecting rod 213 is slidably limited to the vertical groove 23. A round rod 214 is slidably limited to the limiting groove 231. The connecting rod 213 and the vertical groove 23 are interconnected. The length of the limiting groove 231 is shorter than the length of the vertical groove 23. The round rod 214 is used to prevent the connecting rod 213 from disengaging from the vertical groove 23. Three fixed shells 24 are fixedly connected to the outer surface of the bracket 1. The inner walls of the three fixed shells 24 are all fitted with wedges 241 that slide and limit each other. The sides of the three wedges 241 that are far apart from each other are fixedly connected with pull rods 242. A spring 243 is sleeved on the outside of the pull rod 242. The end of the spring 243 that is far away from the wedge 241 is fixedly connected to the inner wall of the fixed shell 24, and the end of the spring 243 that is close to the wedge 241 is fixedly connected to the wedge 241. The inside of the fixed shell 24 is connected to the limiting groove 231. The bottom of the wedge 241 is provided with an inclined surface.

[0019] A ring 321 is fixedly connected to the outer surface of the adjusting rod 32. The ring 321 slides and limits the movement of the inner wall of the mounting cylinder 31. A second spring 322 is sleeved on the outer side of the adjusting rod 32. One end of the second spring 322 is fixedly connected to the ring 321, and the other end of the second spring 322 is fixedly connected to the inner wall of the mounting cylinder 31. When the three support legs 21 are rotated counterclockwise, the round rod 214 at the bottom of the connecting rod 213 slides in the limiting groove 231. After the round rod 214 contacts the wedge block 241, it will squeeze the wedge block 241 and compress the first spring 243. When the round rod 214 moves to the limit... Position: Spring 243 pushes wedge 241 to reset, thus limiting the downward movement of rod 214. The other three support legs 21 operate in the same way. When storing, pull rod 242 to make wedge 241 enter fixed shell 24, and then rotate support leg 21 clockwise until hinge seat 212 contacts the outer wall of bracket 1. The other three support legs 21 operate in the same way. This method allows for quick unfolding and folding of the three support legs 21 when carrying and deploying timer 12 and bracket 1, which is simple, convenient, and saves more space. Ring 321 is used to support and install spring 222. The outer surface of the extension leg 22 is provided with several locking grooves 33, and the outer side of the extension leg 22 is provided with a sliding groove 34. A stop block 331 is fixedly connected to the inner wall of the locking groove 33. Pull the adjusting rod 32 away from the supporting leg 21, and then rotate the extension leg 22 clockwise. When the adjusting rod 32 and the sliding groove 34 are on the same vertical line, release it. Spring 22 pushes it to contact the sliding groove 34. Then pull the extension leg 22 to slide inside the supporting leg 21. After adjustment, rotate the extension leg 22 counterclockwise. The stop block 331 contacts the ball head of the adjusting rod 32 and pushes it away from the supporting leg 21. 1. When no longer in contact with the adjusting rod 32, the spring 22 pushes it into the locking groove 33 to fix the extension leg 22. When storing, pull the adjusting rod 32 away from the support leg 21, rotate the extension leg 22 clockwise and push it into the support leg 21. The other two extension legs 22 are adjusted in the same way. This setting can adjust the length of the three extension legs 22 extending out of the support leg 21 according to the usage requirements, improving the overall applicability. Several locking grooves 33 are evenly distributed, and the locking grooves 33 are connected to the sliding grooves 34. The inner wall of the locking groove 33 is adapted to the ball head of the adjusting rod 32.

[0020] A specific application of this embodiment is as follows: In use, the bracket 1 and timer 12 are removed from the storage box. Then, the three support legs 21 are rotated counterclockwise so that the bottom of each support leg 21 moves away from the bracket 1. During the rotation of the support leg 21, since it is hinged to the connecting rod 213 via the hinge seat 212, and the connecting rod 213 is slidably connected to the limiting groove 231 via the round rod 214, when the extension leg 22 rotates, the connecting rod 213 will slide in the vertical groove 23, while the round rod 214 will slide upwards in the limiting groove 231. When rod 214 contacts wedge 241, it will squeeze and push wedge 241 away from support leg 21 through the inclined surface of wedge 241. At this time, wedge 241 and inner wall of fixed shell 24 cooperate with each other to squeeze spring 243. When rod 214 moves up to the limit position, rod 214 no longer contacts wedge 241. At this time, spring 243 pushes wedge 241 back to support leg 21 through its own elasticity. At this time, rod 214 cannot move down, thus preventing support leg 21 from continuing to rotate. The other three support legs 21 are adjusted in the same way. Next, pull the adjusting rod 32 away from the support leg 21. At this time, the ring 321 and the inner wall of the mounting cylinder 31 jointly compress the spring 322. When the adjusting rod 32 can no longer be pulled, the extension leg 22 can be rotated clockwise. When the adjusting rod 32 and the slide groove 34 are on the same vertical line, release the adjusting rod 32. The spring 322 pushes the adjusting rod 32 back to its original position and contacts the slide groove 34 through its own elastic force. At this time, the extension leg 22 can be pulled to slide back and forth in the support leg 21. Adjust the length of the extension leg 22 extending out of the support leg 21 as needed. After adjustment, rotate counterclockwise. When the needle rotates the extension leg 22, when the stop block 331 contacts the ball head of the adjusting rod 32 near the end of the extension leg 22, it will squeeze and push the adjusting rod 32 away from the support leg 21. When the stop block 331 no longer contacts the adjusting rod 32, the spring 2 322 pushes the adjusting rod 32 to reset and insert it into the locking groove 33 through its own elastic force. At this time, the extension leg 22 cannot rotate and cannot move back and forth. Finally, rotate the extension frame 11 counterclockwise, and it will move up and extend out of the bracket 1. After reaching the appropriate position, stop rotating. Then install the timer 12 on the top of the extension frame 11. When it needs to be stored away, remove the timer 12, then rotate the extension bracket 11 clockwise. It will move down into the bracket 1. Then pull the lever 242 to move the wedge 241 away from the support leg 21. After the wedge 241 is fully inserted into the fixed shell 24, rotate the support leg 21 clockwise until the hinge seat 212 contacts the outer wall of the bracket 1. Adjust the other three support legs 21 in the same way. Then pull the adjusting lever 32 away from the support leg 21 and rotate the extension leg 22 clockwise. Then push the extension leg 22 into the support leg 21. Adjust the other two extension legs 22 in the same way. Finally, put the bracket 1 and the storage mechanism 2 into the storage box.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A portable runway infrared sensor timer, comprising a bracket (1), wherein an extension frame (11) is provided inside the bracket (1), a timer (12) is mounted on the top of the extension frame (11), and three support legs (21) are provided on the outside of the bracket (1), characterized in that, Also includes: Storage mechanism (2), the storage mechanism (2) is set inside the bracket (1), the storage mechanism (2) is used to unfold and retract the support leg (21), the storage mechanism (2) includes three connecting rods (213), the bottom of the connecting rods (213) is fixedly connected to a round rod (214), the support leg (21) is slidably limited and fitted with an extension leg (22), the bracket (1) has three vertical grooves (23) inside, the inner wall of the vertical grooves (23) has a limiting groove (231); and Adjustment mechanism (3), which is disposed on the outer surface of the extension leg (22), is used to adjust the length of the extension leg (22) extending out of the support leg (21); The extension frame (11) has a threaded groove at the bottom of its outer surface, the bracket (1) has a threaded groove on its inner wall, and the bracket (1) is threadedly connected to the extension frame (11).

2. The portable runway infrared sensor timer according to claim 1, characterized in that, The storage mechanism (2) includes three hinge seats (211), all three hinge seats (211) are fixedly connected to the outer surface of the bracket (1), and the top of the support leg (21) is hinged to the hinge seat (211); Among them, the three support legs (21) are distributed in a ring at equal intervals on the outside of the bracket (1).

3. A portable runway infrared sensor timer according to claim 1, characterized in that, The adjustment mechanism (3) includes three mounting cylinders (31), which are fixedly connected to the outer surface of the support leg (21), and the inner wall of the mounting cylinder (31) is fitted with an adjustment rod (32) for sliding limit. The adjusting rod (32) has a ball head at one end near the extension leg (22).

4. A portable runway infrared sensor timer according to claim 2, characterized in that, The three support legs (21) are fixedly connected to hinge seats (212) on the side that is close to each other. The connecting rod (213) is hinged to the hinge seat (212). The connecting rod (213) is slidably limited to the vertical groove (23). The round rod (214) is slidably limited to the limiting groove (231). The connecting rod (213) and the vertical groove (23) are interconnected. The length of the limiting groove (231) is shorter than the length of the vertical groove (23). The round rod (214) is used to prevent the connecting rod (213) from detaching from the vertical groove (23).

5. A portable runway infrared sensor timer according to claim 4, characterized in that, The bracket (1) has three fixed shells (24) fixedly connected to its outer surface. The inner walls of the three fixed shells (24) are all fitted with wedges (241) that slide and limit each other. The sides of the three wedges (241) that are far apart from each other are all fixedly connected with pull rods (242). A spring (243) is sleeved on the outside of the pull rod (242). The end of the spring (243) that is far away from the wedge (241) is fixedly connected to the inner wall of the fixed shell (24), and the end of the spring (243) that is close to the wedge (241) is fixedly connected to the wedge (241). The fixed shell (24) is connected to the limiting groove (231), and the bottom of the wedge (241) is provided with an inclined surface.

6. A portable runway infrared sensor timer according to claim 3, characterized in that, A ring (321) is fixedly connected to the outer surface of the adjusting rod (32). The ring (321) is slidably limited to the inner wall of the mounting cylinder (31). A second spring (322) is sleeved on the outer side of the adjusting rod (32). One end of the second spring (322) is fixedly connected to the ring (321), and the other end of the second spring (322) is fixedly connected to the inner wall of the mounting cylinder (31). The ring (321) is used to support and mount the second spring (322).

7. A portable runway infrared sensor timer according to claim 6, characterized in that, The outer surface of the extension leg (22) is provided with a plurality of locking grooves (33), the outer side of the extension leg (22) is provided with a sliding groove (34), and a stop block (331) is fixedly connected to the inner wall of the locking groove (33). Among them, several locking grooves (33) are distributed at equal intervals, the locking grooves (33) are connected to the sliding grooves (34), and the inner wall of the locking grooves (33) is adapted to the ball head of the adjusting rod (32).

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