Pneumatic stay wire spring mechanism

Abstract

The utility model relates to the field of balancers, and discloses a pneumatic stay wire spring mechanism which comprises a mounting rectangular tube, sliding blocks are connected to the inner walls of the front side and the rear side of the left end of the mounting rectangular tube through adjusting assemblies, the sliding blocks are connected to the inner wall of the mounting rectangular tube in a sliding mode, and a guide wheel shaft is rotationally connected to the left end of the inner wall of the mounting rectangular tube. A U-shaped guide wheel is fixedly connected to the outer wall of the guide wheel shaft, an air support mounting shaft is fixedly connected to the position, close to the right end of the U-shaped guide wheel, of the inner wall of the mounting rectangular pipe, an air spring is fixedly connected to the outer wall of the air support mounting shaft, a connector is fixedly connected to the right end of the air spring, and ball bearings are rotationally connected to the front side and the rear side of the connector. In the utility model, the steel rope can be guided to the mounting position by the pulley, so that the mounting position is more free and the mounting limitation is less, the whole equipment is strip-shaped, the occupied space is long and narrow, the hidden mounting is facilitated, and the internal gas spring is smaller in size and more hidden than a balancer which is directly used under the condition of the same tension.

Description

Technical Field

[0001] The utility model relates to the field of balancers, in particular to a pneumatic cable spring mechanism. Background Technique

[0002] The container with pneumatic cable spring seal is filled with compressed gas, and its spring action is realized by using the compressibility of the gas. The stiffness of this spring is variable. When the load acting on the spring increases, the pressure of the fixed amount of gas in the container rises, and the stiffness of the spring increases. Conversely, the stiffness decreases. Therefore, it has an ideal elastic characteristic.

[0003] At present, when using a balancer to hang an object, when the weight is large, the corresponding volume is large, which is not convenient for concealed installation. When using a relatively small pneumatic spring, the force is large but the installation position is relatively fixed, and most of them are push-type gas springs, which are easy to interfere with other mechanisms.

[0004] In view of this, in response to the technical problem that the equipment for hanging objects is large in volume and inconvenient for concealed installation or the installation position is relatively fixed, this application proposes a pneumatic cable spring mechanism. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a pneumatic cable spring mechanism, whose installation position is more flexible and the installation restrictions are less. The overall equipment is in a long strip shape and occupies a narrow space, which is conducive to concealed installation.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pneumatic cable spring mechanism, including an installation rectangular pipe. The inner walls of the front and rear sides at the left end of the installation rectangular pipe are connected with sliders through adjusting components. The sliders are slidably connected to the inner wall of the installation rectangular pipe. A guide wheel shaft is rotatably connected to the inner wall at the left end of the installation rectangular pipe. A U-shaped guide wheel is fixedly connected to the outer wall of the guide wheel shaft. An air support installation shaft is fixedly connected to the inner wall of the installation rectangular pipe near the right end of the U-shaped guide wheel. An air spring is fixedly connected to the outer wall of the air support installation shaft. A joint is fixedly connected to the right end of the air spring. Ball bearings are rotatably connected to the front and rear sides of the joint. A steel cable is fixedly connected to the left end of the joint.

[0008] Further, the adjusting component includes adjusting shafts rotatably connected to the inner walls of the front and rear sides at the left end of the installation rectangular pipe. Threaded rods are fixedly connected to the right ends of the adjusting shafts. The sliders are threadedly connected to the outer walls of the threaded rods.

[0009] Further, the right ends of the threaded rods are fixedly connected to the inner wall at the right end of the installation rectangular pipe. The outer walls of the sliders are slidably connected to the inner wall of the installation rectangular pipe.

[0010] Further, one end of the slider is fixedly connected with a telescopic tube, and the outer wall of the telescopic tube is slidably connected to the inner wall of the mounting rectangular tube.

[0011] Further, the right end of the adjusting shaft is in the shape of a cross slot.

[0012] Further, a recessed groove is formed in the middle of the U-shaped guide wheel.

[0013] Further, the outer edges of the ball bearings are respectively tangent to the front and rear sides of the top end of the inner wall of the rectangular tube telescopic tube, and the steel cable extends to the groove of the U-shaped guide wheel.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the steel rope can be guided to the installation position by a pulley, so the installation position is more free and the installation restrictions are less. The whole device is in a long strip shape and occupies a narrow space, which is conducive to hidden installation. And the internal gas spring is smaller and more concealed than directly using a balancer under the same pulling force.

[0016] 2. In the utility model, the telescopic tube of the device can be contracted in the mounting rectangular tube, so as to adjust the overall length, and can be adjusted according to the length of the installation position, so as to meet the installation of various length situations and improve the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a pneumatic cable spring mechanism proposed by the utility model;

[0018] Figure 2 is a schematic cross-sectional structure view of the telescopic tube of a pneumatic cable spring mechanism proposed by the utility model;

[0019] Figure 3 is a schematic cross-sectional structure view of the mounting rectangular tube of a pneumatic cable spring mechanism proposed by the utility model.

[0020] LEGEND DESCRIPTION:

[0021] 1. Mounting rectangular tube; 2. Telescopic tube; 3. Steel cable; 4. U-shaped guide wheel; 5. Gas spring; 6. Joint; 7. Guide wheel shaft; 8. Gas support mounting shaft; 9. Ball bearing; 10. Adjusting shaft; 11. Threaded rod; 12. Slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Referring to Figure 1 and Figure 2 , an embodiment provided by the present utility model: a pneumatic cable-pulling spring mechanism, including a mounting rectangular pipe 1, a slider 12 is slidably connected to the inner wall of the mounting rectangular pipe 1, a guide wheel shaft 7 is rotatably connected to the left end of the inner wall of the mounting rectangular pipe 1, a U-shaped guide wheel 4 is fixedly connected to the outer wall of the guide wheel shaft 7, an air support mounting shaft 8 is fixedly connected to the inner wall of the mounting rectangular pipe 1 near the right end of the U-shaped guide wheel 4, a gas spring 5 is fixedly connected to the outer wall of the air support mounting shaft 8, a joint 6 is fixedly connected to the right end of the gas spring 5, ball bearings 9 are rotatably connected to the front and rear sides of the joint 6, a steel cable 3 is fixedly connected to the left end of the joint 6, a telescopic pipe 2 is fixedly connected to the opposite end of the slider 12, and the outer wall of the telescopic pipe 2 is slidably connected to the inner wall of the mounting rectangular pipe 1. There is a recessed groove in the middle of the U-shaped guide wheel 4, and the outer edges of the ball bearings 9 are respectively tangent to the front and rear sides of the top end of the inner wall of the rectangular pipe telescopic pipe 2, and the steel cable 3 extends into the groove of the U-shaped guide wheel 4.

[0024] Specifically, the steel cable 3 can transmit the load it connects, be guided by the U-shaped guide wheel 4 and transmitted to the joint 6, and then the joint 6 divides the force. The radial force is applied to the inner wall of the telescopic pipe 2, and the remaining axial force is applied to the gas spring 5, thereby compressing the air inside it to generate a reaction force to offset the force applied to it.

[0025] Referring to Figure 1 and Figure 3 , adjusting shafts 10 are rotatably connected to the front and rear inner walls at the left end of the mounting rectangular pipe 1. Threaded rods 11 are fixedly connected to the right ends of the adjusting shafts 10. The outer walls of the threaded rods 11 are threadedly connected to the sliders 12. The right ends of the threaded rods 11 are fixedly connected to the inner wall at the right end of the mounting rectangular pipe 1. The outer walls of the sliders 12 are slidably connected to the inner wall of the mounting rectangular pipe 1. The right ends of the adjusting shafts 10 are in the shape of a cross slot.

[0026] Specifically, the shortest contraction of the telescopic pipe 2 does not exceed the position of the joint 6 when the gas spring 5 does not apply a load. At the same time, use a tool to rotate the adjusting shaft 10 and keep the rotation direction and speed consistent, causing the slider 12 to drive the telescopic pipe 2 to move inside the mounting rectangular pipe 1, thereby adjusting the installation length.

[0027] Working principle: The load transfers the tensile force to the joint 6 through the steel cable 3. At this time, the joint 6 will divide the force into two parts. The radial force will be borne by the steel cable 3 through the joint 6, and the axial force will be borne by the gas spring 5. At this time, the gas spring 5 will contract inward and compress the air filled inside. When the compressed air reaches a certain level, the reaction force will gradually balance with the axial force of the load. At this time, the object providing the load will be stopped in the air, forming a weightless state. When contracting the telescopic tube 2, use two cross-shaped tools to fit on the cross of the adjusting shaft 10 and rotate in the same direction at the same time. At this time, it will drive the respective sliders 12 to move in the same direction and drive the telescopic tube 2 to slide on the mounting rectangular tube 1 to achieve extension and contraction. Thus, the telescopic tube 2 of the device can be contracted within the mounting rectangular tube 1, thereby adjusting the overall length, and can be adjusted according to the length of the installation position, so as to meet the installation of various length conditions and improve the practicability of the device.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pneumatic cable-pulling spring mechanism, comprising a mounting rectangular pipe (1), characterized in that: On the inner walls of the front and rear sides of the left end of the installation rectangular pipe (1), sliders (12) are connected through adjusting components. The sliders (12) are slidably connected to the inner wall of the installation rectangular pipe (1). A guide wheel shaft (7) is rotatably connected to the left end of the inner wall of the installation rectangular pipe (1). A U-shaped guide wheel (4) is fixedly connected to the outer wall of the guide wheel shaft (7). An air support installation shaft (8) is fixedly connected to the inner wall of the installation rectangular pipe (1) near the right end of the U-shaped guide wheel (4). An air spring (5) is fixedly connected to the outer wall of the air support installation shaft (8). A joint (6) is fixedly connected to the right end of the air spring (5). Ball bearings (9) are rotatably connected to the front and rear sides of the joint (6). A steel cable (3) is fixedly connected to the left end of the joint (6).

2. The pneumatic wire-pulling spring mechanism according to claim 1, characterized in that: The adjusting component includes adjusting shafts (10) rotatably connected to the inner walls of the front and rear sides of the left end of the installation rectangular pipe (1). Right ends of the adjusting shafts (10) are fixedly connected with threaded rods (11). The sliders (12) are threadedly connected to the outer walls of the threaded rods (11).

3. The pneumatic wire-pulling spring mechanism according to claim 2, characterized in that: Right ends of the threaded rods (11) are fixedly connected to the inner wall of the right end of the installation rectangular pipe (1). The outer walls of the sliders (12) are slidably connected to the inner wall of the installation rectangular pipe (1).

4. The pneumatic wire-pulling spring mechanism according to claim 1, characterized in that: A telescopic pipe (2) is fixedly connected to the opposite ends of the sliders (12). The outer wall of the telescopic pipe (2) is slidably connected to the inner wall of the installation rectangular pipe (1).

5. The pneumatic wire-pulling spring mechanism according to claim 2, characterized in that: The right end of the adjusting shaft (10) is in the shape of a cross groove.

6. The pneumatic cable-pulling spring mechanism according to claim 1, characterized in that: The middle part of the U-shaped guide wheel (4) has a sunken groove.

7. The pneumatic wire-pulling spring mechanism according to claim 1, characterized in that: The outer edges of the ball bearings (9) are respectively tangent to the front and rear sides of the top end of the inner wall of the rectangular pipe telescopic pipe (2). The steel cable (3) extends to the groove of the U-shaped guide wheel (4).

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