Stable counterweight platform

Abstract

The utility model relates to a stable counterweight platform which comprises a base, at least two sliding rods, a gear set and a knob, sliding grooves are formed in the base, the sliding grooves correspond to the sliding rods in a one-to-one mode, and the sliding rods are arranged in the sliding grooves in a sliding mode. The gear set is in transmission connection with the knob and the sliding rod. The knob is used for driving the gear set to make the sliding rod extend out of the sliding groove and away from the base. The sliding rod is arranged in the sliding groove and can move in the sliding groove, the rotary knob can drive the gear set to rotate, due to the fact that the gear set is in transmission connection with the sliding rod, the sliding rod can move in the sliding groove in the transmission process of the gear set, and then the sliding rod can stretch out of the sliding groove and be away from the base. Compared with a traditional base, the stable balance weight platform has the advantages that the base is matched with the at least two sliding rods, the gear set and the rotary knob, the supporting diameter of the balance weight base can be increased, the ground gripping area of the stable balance weight platform can be larger and more stable, and the stability of the stable balance weight platform can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a stable counterweight platform. Background Art

[0002] In the field of mechanical technology, a tripod is usually used to support photographic devices, such as a tripod. Most common photographic tripods in daily life are composed of three single-leg tubes, a central axis, and a pan head, wherein a quick-release plate can connect the pan head and the camera. In the prior art, the tripod is relatively light and easy to flip over when it encounters wind or external force, which may damage the photographic equipment and accessories. Therefore, a stable counterweight platform with strong stability is urgently needed. Utility Model Content

[0003] Based on this, the present application provides a stable counterweight platform, which can improve the stability of the stable counterweight platform.

[0004] A stable counterweight platform includes a base, at least two sliding rods, a gear set and a knob. The base is provided with a sliding groove, the sliding groove corresponds to the sliding rod one by one, and the sliding rod can be slidably arranged in the sliding groove; the gear set is respectively connected to the knob and the sliding rod in transmission; the knob is used to drive the gear set to make the sliding rod extend out of the sliding groove and away from the base.

[0005] The above stable counterweight platform includes a base, at least two slide bars, a gear set and a knob. The base is provided with a slide groove, the slide groove corresponds to the slide rod one by one, and the slide rod can be slidably arranged in the slide groove; the gear set is respectively connected to the knob and the slide rod in a transmission manner; the knob is used to drive the gear set to make the slide rod extend out of the slide groove and away from the base. The slide rod is arranged in the slide groove, and the slide rod can move in the slide groove. Rotating the knob can drive the gear set to rotate. Since the gear set is connected to the slide rod in a transmission manner, the slide rod can move in the slide groove during the transmission of the gear set, and then the slide rod can extend out of the slide groove and away from the base. Compared with the traditional base, the utility model provides a stable counterweight platform, in which the base and at least two slide rods, the gear set and the knob cooperate to increase the support diameter of the counterweight base, make the gripping area of ​​the stable counterweight platform larger and more stable, and improve the stability of the stable counterweight platform.

[0006] In one embodiment, the gear set includes a large gear and a small gear, the small gear includes a first gear, a second gear, and a third gear respectively meshed with the large gear, the at least two sliding rods include a first sliding rod, a second sliding rod, and a third sliding rod, the first sliding rod, the second sliding rod, and the third sliding rod are respectively meshed with the first gear, the second gear, and the third gear, and the knob is fixedly connected to the third gear.

[0007] In one embodiment, the first gear, the second gear and the third gear are distributed at equal intervals along the circumference of the large gear, and the first slide bar, the second slide bar and the third slide bar are arranged at an angle of 60° to each other.

[0008] In one of the embodiments, a supporting foot is provided at the end of the sliding rod in the direction of extending out of the sliding groove, and the supporting foot is rotatably connected to the sliding rod.

[0009] In one embodiment, the sliding rod is provided with a strip groove, and the supporting foot is rotatably connected in the strip groove.

[0010] In one of the embodiments, a spring sheet is provided between the supporting foot and the strip groove, and the spring sheet is used to make the supporting foot pop out of the strip groove.

[0011] In one embodiment, a mounting groove is provided on the top of the base, and the side wall edge of the mounting groove forms a concave inclined surface.

[0012] In one of the embodiments, a mounting groove is provided on the top of the base, and the knob protrudes from the bottom of the mounting groove.

[0013] In one of the embodiments, a fixing screw is further included, wherein the fixing screw is threadedly connected to the base, and the fixing screw passes through the slide groove from the outside of the base to abut against the slide rod.

[0014] In one embodiment, a surface of one side of the sliding rod close to the fixing screw rod is a plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 is an axonometric view of a stable counterweight platform according to an embodiment;

[0017] Figure 2 A top view of a stable counterweight platform according to an embodiment;

[0018] Figure 3 A first schematic diagram of a slide bar and a gear set of a stable counterweight platform according to an embodiment;

[0019] Figure 4 A second schematic diagram of a slide bar and a gear set of a stable counterweight platform according to an embodiment;

[0020] Figure 5 A third schematic diagram of a slide bar and a gear set for stabilizing a counterweight platform according to an embodiment.

[0021] Stable counterweight platform 10; base 20; mounting groove 22; concave inclined surface 220; slide bar 30; first slide bar 31; second slide bar 32; third slide bar 33; support foot 34; strip groove 35; gear set 40; large gear 41; small gear 42; first gear 421; second gear 422; third gear 423; knob 50; fixing screw 60 DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0026] In the field of photography support, tripods are usually used to support photographic devices, such as tripods. Most common photography tripods in daily life are composed of three single-leg tubes, a central axis and a pan head, in which a quick-release plate can connect the pan head and the camera. The common tripods on the market are mainly made of materials such as alloy, wood, plastic, volcanic stone and carbon fiber. Among them, the plastic tripod is light and easy to carry, but the disadvantage is that the load is very small, and a large camera with a slightly heavier weight is easy to tip over or shake on it. Therefore, it is not suitable for large cameras. Alloy tripods are mostly made of aluminum or magnesium alloy. This type of tripod has the advantages of strong rigidity, good stability, and can load large cameras, but due to the overall weight, it will be a greater burden when carrying for long distances. Wooden tripods made of various woods are moderately heavy, but they are poor in portability and easily broken by external impact. Therefore, the limitations of this material tripod are relatively strong. It can be seen from this that in the prior art, the tripod is relatively light and easy to flip over when it encounters wind or external force, which may damage photographic equipment and accessories, and it is difficult to simultaneously meet the performance of being easy to carry and having strong stability. The stable counterweight platform 10 provided by the present application, the slide bar 30 is arranged in the slide groove, the slide bar 30 can move in the slide groove, and the rotating knob 50 can drive the gear set 40 to rotate. Since the gear set 40 is connected to the slide bar 30 by transmission, the slide bar 30 can move in the slide groove during the transmission of the gear set 40, and then the slide bar 30 can be extended out of the slide groove and away from the base 20. Compared with the traditional base 20, the stable counterweight platform 10 provided by the utility model, the base 20 and at least two slide bars 30, the gear set 40 and the knob 50 cooperate, which can increase the support diameter of the counterweight base 20, can make the gripping area of ​​the stable counterweight platform 10 larger and more stable, and can improve the stability of the stable counterweight platform 10.

[0027] See also Figure 1 , Figure 2 and Figure 3The stable counterweight platform 10 includes a base 20, at least two slide bars 30, a gear set 40 and a knob 50. A slide groove is provided in the base 20, and the slide groove corresponds to the slide bar 30 one by one. The slide bar 30 can be slidably arranged in the slide groove; the gear set 40 is respectively connected to the knob 50 and the slide bar 30 for transmission; the knob 50 is used to drive the gear set 40 to make the slide bar 30 extend out of the slide groove and away from the base 20. In some embodiments, the stable counterweight platform 10 includes a base 20, and the base 20 has a counterweight function. The material of the base 20 can be cold-rolled steel, and the weight can be set to about 10KG. The base 20 can be connected to a bracket, such as a tripod. In some embodiments, the slide groove provided in the base 20 corresponds to the slide bar 30 one by one. Specifically, when the stable counterweight platform 10 includes two slide bars 30, the base 20 is provided with two slide grooves for the sliding of the slide bar 30. Further, the slide bar 30 can move in the slide groove. In some embodiments, the stable counterweight platform 10 includes three slide bars 30, and the base 20 is provided with three slide grooves for the sliding of the three slide bars 30. In some embodiments, the stable counterweight platform 10 is provided with a knob 50, and the user can rotate the knob 50. In some embodiments, part of the structure of the knob 50 is provided outside the base 20, so that the user can directly rotate the knob 50. In some embodiments, the knob 50 is connected to the gear set 40, and rotating the knob 50 can drive the gear set 40 to rotate. Since the gear set 40 is in transmission connection with the slide bar 30, during the transmission of the gear set 40, the slide bar 30 can move in the slide groove, so that the slide bar 30 can extend out of the slide groove and away from the base 20. Compared with the traditional base 20, the utility model provides a stable counterweight platform 10, in which the base 20 cooperates with at least two sliding rods 30, a gear set 40 and a knob 50, which can increase the support diameter of the counterweight base 20, make the gripping area of ​​the stable counterweight platform 10 larger and more stable, and improve the stability of the stable counterweight platform 10.

[0028] See also Figure 3 , Figure 4 and Figure 5In some embodiments, the gear set 40 includes a large gear 41 and a small gear 42, and the large gear 41 and the small gear 42 are meshed. Specifically, the small gear 42 includes a first gear 421, a second gear 422, and a third gear 423 that are respectively meshed with the large gear 41. In some embodiments, the sizes of the first gear 421, the second gear 422, and the third gear 423 can be set to gears of the same size. In some embodiments, the sizes of the first gear 421, the second gear 422, and the third gear 423 can be set to gears of different sizes. In some embodiments, at least two slide bars 30 include a first slide bar 31, a second slide bar 32, and a third slide bar 33, and the first slide bar 31, the second slide bar 32, and the third slide bar 33 are respectively meshed with the first gear 421, the second gear 422, and the third gear 423, and the knob 50 is fixedly connected to the third gear 423. Specifically, the third gear 423 is meshed with the third slide bar 33. Since the knob 50 is fixedly connected to the third gear 423, rotating the knob 50 can cause the third gear 423 to rotate. The rotation of the third gear 423 causes the third slide bar 33 to move. Since the large gear 41 is meshed with the third gear 423, the transmission of the third gear 423 causes the large gear 41 to transmit. Furthermore, since the first gear 421 and the second gear 422 are meshed with the large gear 41, the transmission of the large gear 41 can cause both the first gear 421 and the second gear 422 to transmit. Furthermore, since the first gear 421 is meshed with the first slide bar 31 and the second gear 422 is meshed with the second slide bar 32, the transmission of the first gear 421 and the second gear 422 causes the first slide bar 31 and the second slide bar 32 to move, thereby enabling the first slide bar 31, the second slide bar 32 and the third slide bar 33 to move in the slide groove in the base 20, thereby enabling the first slide bar 31, the second slide bar 32 and the third slide bar 33 to extend out of the slide groove and away from the base 20. The three slide bars drive the large gear 41 through a knob 50 to achieve synchronous sliding adjustment in the same direction. The adjustment stroke is relatively large and convenient to store and hide. Further increasing the support diameter of the counterweight base 20 can make the grip area of ​​the stable counterweight platform 10 larger and more stable, and can improve the stability of the stable counterweight platform 10.

[0029] In some embodiments, the first gear 421, the second gear 422 and the third gear 423 are equally spaced along the circumference of the large gear 41. In some embodiments, the first gear 421, the second gear 422 and the third gear 423 are of the same size, and the first slide bar 31, the second slide bar 32 and the third slide bar 33 are arranged at an angle of 60° to each other. This makes the first slide bar 31, the second slide bar 32 and the third slide bar 33 move the same distance relative to the base 20, which is conducive to better controlling the distance of the first slide bar 31, the second slide bar 32 and the third slide bar 33 extending out of the slide slot, thereby more effectively improving the stability of the stable counterweight platform 10.

[0030] In some embodiments, the small gear 42 includes a first gear 421, a second gear 422, a third gear 423, and a fourth gear that are respectively meshed with the large gear 41. In some embodiments, the sizes of the first gear 421, the second gear 422, the third gear 423, and the fourth gear can be set to gears of the same size. In some embodiments, the sizes of the first gear 421, the second gear 422, the third gear 423, and the fourth gear can be set to gears of different sizes. In some embodiments, at least two slide bars 30 include a first slide bar 31, a second slide bar 32, a third slide bar 33, and a fourth slide bar. The first slide bar 31, the second slide bar 32, the third slide bar 33, and the fourth slide bar are respectively meshed with the first gear 421, the second gear 422, the third gear 423, and the fourth gear, and the knob 50 is fixedly connected to the third gear 423. Specifically, the third gear 423 is meshed with the third slide bar 33. Since the knob 50 is fixedly connected to the third gear 423, rotating the knob 50 can cause the third gear 423 to rotate. The rotation of the third gear 423 causes the third slide bar 33 to move. Since the large gear 41 is meshed with the third gear 423, the transmission of the third gear 423 causes the large gear 41 to transmit. Furthermore, since the first gear 421, the second gear 422 and the fourth gear are meshed with the large gear 41, the transmission of the large gear 41 can cause the first gear 421, the second gear 422 and the fourth gear to all transmit. Furthermore, since the first gear 421 is meshed with the first slide bar 31, the second gear 422 is meshed with the second slide bar 32, and the fourth gear is meshed with the fourth slide bar, the transmission of the first gear 421, the second gear 422 and the fourth gear causes the first slide bar 31, the second slide bar 32 and the fourth slide bar to move, thereby enabling the first slide bar 31, the second slide bar 32, the third slide bar 33 and the fourth slide bar to move in the slide groove in the base 20, thereby enabling the first slide bar 31, the second slide bar 32, the third slide bar 33 and the fourth slide bar to extend out of the slide groove and away from the base 20, further increasing the support diameter of the counterweight base 20, which can make the grip area of ​​the stable counterweight platform 10 larger and more stable, and can improve the stability of the stable counterweight platform 10.

[0031] In some embodiments, the first gear 421, the second gear 422, the third gear 423 and the fourth gear are equally spaced along the circumference of the large gear 41. In some embodiments, the first gear 421, the second gear 422, the third gear 423 and the fourth gear are of the same size, and the first slide bar 31, the second slide bar 32, the third slide bar 33 and the fourth slide bar are arranged at an angle of 90° to each other. This makes the first slide bar 31, the second slide bar 32, the third slide bar 33 and the fourth slide bar move the same distance relative to the base 20, which is conducive to better controlling the distance of the first slide bar 31, the second slide bar 32, the third slide bar 33 and the fourth slide bar extending out of the slide slot, thereby more effectively improving the stability of the stable counterweight platform 10.

[0032] In some embodiments, the slide bar 30 is provided with a support foot 34 at the end in the direction of extending out of the slide slot. The support foot 34 is rotatably connected to the slide bar 30. The support foot 34 plays a supporting role. The support foot 34 is rotatably connected to the slide bar 30 for easy storage. When the support foot 34 is not needed, the support foot 34 can be stored in the slide bar 30. In some embodiments, the slide bar 30 can move in the slide slot of the base 20. When the user uses the stable counterweight platform 10, the slide bar 30 can be slid out of the slide slot in the base 20 as needed. Further, the support foot 34 can be stored in the slide bar 30 as needed. Open, when the user does not need to use it, the sliding bar 30 can be stored in the sliding groove of the base 20 by rotating the knob 50. The sliding bar 30 has the function of convenient storage, which is convenient for packaging and carrying. In some embodiments, the rotatable connection between the supporting foot 34 and the sliding bar 30 allows the supporting foot 34 to be stored inside the sliding bar 30, and then slide into the groove of the base 20 together with the sliding bar 30, thereby improving the retractability of the stable counterweight platform 10. At the same time, the supporting effect of the supporting foot 34 can make the stable counterweight platform 10 have a more stable grip on the ground, which can improve the stability of the stable counterweight platform 10.

[0033] In some embodiments, due to the connection between the gear set 40 and the slide bar 30, rotating the knob 50 can make at least two slide bars 30 slide synchronously together. In some embodiments, the maximum sliding stroke of the slide bar 30 can be set to 105 mm. The gear set 40 inside the base 20 can be specifically set to be a knob 50 and a third gear 423 integrated, and a large gear 41 is installed in the center. In some embodiments, the large gear 41 does not need to be centrally positioned, but can be positioned and clamped by three small gears 42, so that the gears in the gear set 40 can be freely and smoothly matched. In some embodiments, the support foot 34 set at the tail end of the slide bar 30 can be connected and clamped by a pin. In some embodiments, the support foot 34 can be around the pin 105°. In some embodiments, the support foot 34 can be around the pin at an angle of 90° to 105°. The above-mentioned setting can make the support foot 34 grip the ground more stably and improve the stability of the stable counterweight platform 10.

[0034] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the slide bar 30 is provided with a strip groove 35, and the support foot 34 is rotatably connected to the strip groove 35. The support foot 34 can be stored in the strip groove 35 of the slide bar 30, and then slide into the groove of the base 20 together with the slide bar 30, thereby improving the retractability of the stable counterweight platform 10. At the same time, the supporting effect of the support foot 34 can make the stable counterweight platform 10 have a more stable grip, which can improve the stability of the stable counterweight platform 10. In some embodiments, a spring sheet is provided between the support foot 34 and the strip groove 35. The support foot 34 is stored in the slide bar 30, and the spring sheet is clamped between the two, so that the support foot 34 has a certain elastic force. The spring sheet is used to make the support foot 34 pop out of the strip groove 35. The spring sheet will give a force to the support foot 34 in the storage state, so that the support foot 34 rotates a certain angle, which is convenient for fingers to pick up and rotate. Specifically, when the slide bar 30 is pulled apart, the support foot 34 can rotate a part when the spring sheet force is small, which is convenient for fingers to operate and take the support foot 34, thereby improving the operability of the stable counterweight platform 10. In some embodiments, the top of the base 20 is provided with a mounting groove 22, and the side wall edge of the mounting groove 22 forms an inner concave slope 220. An external tripod accessory can be installed on the platform of the base 20, and the tripod accessory is clamped and stuck by a circle of inner concave slopes 220 on the base 20, so that the tripod accessory and the platform of the base 20 become one, and it has a large weight, which can effectively resist a large external force and will not fall. In some embodiments, a mounting groove 22 is provided on the top of the base 20 , and the knob 50 protrudes from the bottom of the mounting groove 22 , so as to facilitate the user to adjust the stable counterweight platform 10 .

[0035] In some embodiments, the stable counterweight platform 10 also includes a fixed screw 60, which is threadedly connected to the base 20. The fixed screw 60 passes through the slide groove from the outside of the base 20 to support the slide bar 30. In some embodiments, a plane can be cut in the cross-sectional shape of the slide bar 30 to facilitate the installation guide to have a unique direction, and to facilitate the fixed screw 60 to fix and lock the slide bar 30 so that it will not loosen. The slide bar 30 is housed inside the base 20, and the left side of the base 20 has a limiting platform so that the slide bar 30 can only slide in one direction. In some embodiments, the surface of one side of the slide bar 30 close to the fixed screw 60 is a plane, which is convenient for the fixing effect of the fixed screw 60, and then better fixes the adjusted position, which is convenient for the user to adjust the stable counterweight platform 10, and can improve the stability of the stable counterweight platform 10 when in use.

[0036] See also Figure 1 , Figure 3 , Figure 4 and Figure 5, taking at least two slide bars 30 as the first slide bar 31, the second slide bar 32 and the third slide bar 33 as an example, when the user uses it, he rotates the knob 50 counterclockwise, and at this time the third gear 423 connected to the knob 50 also rotates counterclockwise, and the counterclockwise rotation of the third gear 423 drives the large gear 41 to rotate clockwise. Since the first gear 421 and the second gear 422 are meshed with the large gear 41, the clockwise rotation of the large gear 41 drives the first gear 421 to rotate counterclockwise, and the second gear 422 to rotate counterclockwise. Since the first gear 421 is meshed with the first slide bar 31, and the second gear 422 is meshed with the second slide bar 32, the first gear 421 and the second gear 422 are meshed. The transmission of 422 and the third gear 423 causes the first slide bar 31, the second slide bar 32 and the third slide bar 33 to move away from the base 20 at the same time. Since the slide bar 30 is arranged in the slide groove of the base 20, the movement of the first slide bar 31, the second slide bar 32 and the third slide bar 33 is guided, which is convenient for operating the movement stroke of the slide bar 30 of the stable counterweight platform 10. The three slide bars 30 drive the large gear 41 through a knob 50 to achieve synchronous sliding adjustment in the same direction. The adjustment stroke is relatively large and convenient to store and hide. Further increasing the support diameter of the counterweight base 20 can make the grip area of ​​the stable counterweight platform 10 larger and more stable, and can improve the stability of the stable counterweight platform 10.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A stable counterweight platform, characterized in that: It includes a base, at least two sliding rods, a gear set and a knob. The base is provided with a sliding groove, the sliding groove corresponds to the sliding rod one by one, and the sliding rod can be slidably arranged in the sliding groove; the gear set is respectively connected to the knob and the sliding rod in transmission; the knob is used to drive the gear set to make the sliding rod extend out of the sliding groove and away from the base.

2. The stable counterweight platform according to claim 1, characterized in that: The gear set includes a large gear and a small gear, the small gear includes a first gear, a second gear, and a third gear respectively meshed with the large gear, the at least two sliding rods include a first sliding rod, a second sliding rod, and a third sliding rod, the first sliding rod, the second sliding rod, and the third sliding rod are respectively meshed with the first gear, the second gear, and the third gear, and the knob is fixedly connected to the third gear.

3. The stable counterweight platform according to claim 2, characterized in that: The first gear, the second gear and the third gear are distributed at equal intervals along the circumference of the large gear, and the first sliding bar, the second sliding bar and the third sliding bar are arranged at an angle of 60° to each other.

4. The stable counterweight platform according to claim 1, characterized in that: The end of the slide bar extending in the direction of the slide slot is provided with a supporting foot, and the supporting foot is rotatably connected to the slide bar.

5. The stable counterweight platform according to claim 4, characterized in that: The slide bar is provided with a strip groove, and the support foot is rotatably connected in the strip groove.

6. The stable counterweight platform according to claim 5, characterized in that: A spring sheet is provided between the supporting foot and the strip groove, and the spring sheet is used to make the supporting foot pop out of the strip groove.

7. The stable counterweight platform according to claim 1, characterized in that: A mounting groove is arranged on the top of the base, and a side wall edge of the mounting groove forms an inner concave inclined surface.

8. The stable counterweight platform according to claim 1, characterized in that: A mounting groove is arranged on the top of the base, and the knob protrudes from the bottom of the mounting groove.

9. The stable counterweight platform according to claim 1, characterized in that: It also includes a fixing screw, which is threadedly connected to the base. The fixing screw passes through the sliding groove from the outside of the base to resist the sliding rod.

10. The stable counterweight platform according to claim 9, characterized in that: A surface of one side of the sliding rod close to the fixing screw rod is a plane.

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