CN2327827Y - Frame Improvement Joint - Google Patents

Abstract

The utility model provides an improved frame joint, which is mainly an improved creation for improving the defects of the traditional frame joint that the upper tube section cannot be effectively tightened and the tube structure will be damaged. The utility model mainly forms an elastic pressing piece with one end connected to the body and the other end suspended in the axial direction at the hole wall of the joint body sleeve hole, and inserts a metal spacer between the pressing piece and the joint body. When the knob is tightened, the metal spacer can indirectly push the elastic pressing piece, which can not only tighten the tube section by the large area of the axial extension of the elastic pressing piece to obtain higher friction resistance, so as to more firmly position the upper tube section, but also will not directly damage the surface structure of each tube section and the elastic pressing piece, thereby ensuring durability and aesthetics in use.

Description

Frame Improvement Joint

The utility model relates to a frame body joint, more specifically, it is used to be sleeved between two adjacent upper and lower segment tubes of various retractable frame bodies, and the upper segment tube can be released or tightened in time by turning a knob. , according to adjust the frame height of an innovative structure of the improved joint frame.

Generally, the height of the table body or the frame body can be changed flexibly according to the user's height, sitting posture, usage habits, or the convenience of taking objects. One simple method is to make its supporting rods into different shapes. More than two tubes with different diameters are socketed together to form a form that can be extended or shortened. In order to facilitate manual adjustment, an adjustment joint with a screw and a knob is also socketed between the upper and lower tubes, as shown in Figure 1. Shown is a connector 1 that is often used on microphone stands, musical instrument stands, and various work tables. The circular diameter of the ring step 10 is equivalent to the outer diameter of the upper section pipe 20 and the circular diameter of the lower ring step 11 is equivalent to the outer diameter of the lower section pipe 21, so that the discontinuous step surface 22 can abut against the top of the lower section pipe 21 And obtain positioning, and allow the upper section pipe 20 to freely enter and exit the lower section pipe 21, but a single knob 12 is radially screwed on the joint 1, and the screw end can be used to resist the upper section by tightening the knob 12. However, in fact, because the knob 12 only touches the wall of the upper tube 20 in a point contact manner, on the one hand, the contact area between each other is too narrow, and the point of action of the force is single, so it is bound to It will lead to insufficient supporting force, so that the upper section pipe 20 may slide down at any time under pressure, which is extremely dangerous. The end of the knob 12 will generate a huge concentrated pressure on the corresponding part of the upper section pipe 20, so that the surface of the pipe body will be scratched and scratched during the adjustment process many times, causing mottled corrosion, which is really hindering Looking at it, it may even cause the tube body to sag and deform due to pressure, which will affect the positioning effect in the future.

In view of this, the inventor of the present invention has developed a rack with better and more reliable positioning effects after careful consideration and years of professional experience in research, development and marketing of various types of storage racks. Body improved joints.

The main purpose of this utility model is to provide an improved joint for the frame body, mainly forming an elastic forcing piece axially at the hole wall of the sleeve hole of the joint body, with one end connected to the body and the other end suspended in the air. A metal spacer is inserted into the inner side of the piece. When the knob is tightened, the metal spacer can be used to indirectly push the elastic force piece. Not only can the upper and lower joints be tightened more effectively due to the increased contact area, but it will not Damage to the surface structure of the upper and lower joints and the elastic forcer.

The purpose of this utility model is achieved in the following way: an improved joint for the frame body, the hole diameter of the joint is made into a double-ring step type with a small upper part and a larger lower part, so that the upper joint can be freed after being socketed on the lower joint. Stretch in, extend out the lower section pipe, and can tighten or release the upper section pipe in time by turning the knob screwed on the side of the joint. It is characterized in that the hole wall of the joint sleeve hole corresponds to the knob and is at least one in the axial direction. There is an elastic pressing piece with one end connected to the joint body and the other end in a suspended state, and a slit is reserved between the elastic pressing piece and the joint body for inserting a metal spacer. When the knob is tightened , the knob can indirectly push the elastic piece through the metal spacer to tighten the joint tube. A knob is respectively provided at the upper ring step and the lower ring step of the joint relative to the bushing. The length of the elastic forcing piece and the metal spacer is equivalent to the axial length of the joint body, and the number is single. On the joint sleeve hole, a set of elastic pressing pieces and metal spacers are respectively provided on the opposite sides of the lower ring step, and two knobs are correspondingly arranged to independently control the two elastic pressing pieces to press the upper and lower joints respectively. Tube.

To sum up, the improved joint of the frame body disclosed above in the utility model can firmly tighten the joint tube and prevent the knob from damaging the tube by directly integrally forming an elastic forcing piece around the casing hole and inserting a metal spacer. body structure, so the practicability and progressiveness of the utility model should be beyond doubt, and the structure of the utility model has never been seen in similar products and public use, and has not been seen in various publications before the application, so it also meets the novelty requirements.

Fig. 1 is a structural plan sectional view of a joint in the prior art.

Fig. 2 is a three-dimensional sectional view of the structure of the utility model.

Fig. 3 is a top view of the utility model.

Fig. 4 is a structural plane sectional view of the utility model in use.

Fig. 5 is a structural plane sectional view of another embodiment of the utility model in use.

Description of figure number:

1. Connector 10. Shanghuan steps 11. lower ring stage

12. Knob 20． Upper tube 21. Lower tube

twenty two. Level 3. Connector 30. Shanghuan stage

31． Lower ring level 32． bump 320． screw hole

321． screw hole 322． slit 323． storage tank

33． Upper Knob 330． Nut 34． lower knob

340． nut 35． Elastic pressing piece 36. spacer

37． Step surface 40． Upper tube 41. Lower tube

Below in conjunction with accompanying drawing, the utility model is further described with embodiment:

First please refer to Fig. 2 and shown in Fig. 3, which is a preferred embodiment of the improved joint of the frame body of the present invention. The hole wall of the body sleeve of the joint 3 is also made to have a smaller circle diameter as in the prior art structure. The upper ring step 30 and the lower ring step 31 with a larger diameter correspond to the upper joint pipe 40 and the lower joint pipe 41 respectively, wherein a rectangular bump 32 protrudes from one side of the body of the joint 3, and the protrusion 32 Screw holes 320 and 321 are respectively provided on the outer side and the lower side corresponding to the upper ring step 30 and the lower ring step 31, for the upper knob 33 and the lower knob 34 to be screwed therein, and the inner side of the protrusion 32 is formed with an upper end Connected with the body and the lower end is an axial elastic force piece 35 in a suspended state, and a T-shaped space is formed between it and the protrusion 32 so that the metal spacer 36 can be inserted into the slit 322 and the accommodating groove 323 The nuts 330, 340 that are positioned for the screw setting of the two knobs can just be inserted.

As shown in Figure 4, when the joint 3 is inserted into the lower section pipe 41 so that the step surface 37 between the two ring steps is against the top surface of the lower section pipe 41, the lower knob 34 can be tightened first, so that It directly presses against the metal spacer 36 and then indirectly pushes the elastic forcing piece 35 so that the lower section of the elastic forcing piece 35 can be pressed against the lower section tube 41 to position first, and then adjust the position of the upper section tube 40 relative to the lower section tube 41 to an appropriate position. After locking the upper knob 33 relative to the protruding length, the upper section of the elastic pressing piece 35 can be tightly pressed against the wall of the upper section tube 40 through the intermediary of the metal spacer 36, so that the upper section tube 40 and the lower section tube 41 and joint 3 can be firmly combined with each other.

It can be seen that the calculation of the friction area in the elastic forcing piece 35 of the present utility model fully utilizes the principle of frictional resistance is aimed at the contact area that can actually produce relative displacement between the two objects due to the action of an external force, that is, the upper and lower section tubes 40 , 41 is on the axial direction, so the elastic forcing piece 35 is specially designed to extend axially correspondingly, so that the frictional resistance therebetween can be enhanced, and not only that, the elastic forcing piece 35 is more effective in forcing When the joints are tightened, each joint will be squeezed laterally to force each joint and its corresponding ring step to produce a tight abutment effect on the annular area, that is, the contact area therebetween will automatically expand and extend from the elastic force plate 35 to Almost the surface area of the entire sleeve hole wall can effectively ensure that the upper joint pipe 40 will not have the worry of slipping.

In addition, it is more noteworthy that the metal screw tops of the knobs do not directly touch the upper and lower section pipes 40, 41 or the elastic forcing piece 35, but first butt against the metal spacer 36 which is also a hard material and then bear it. Continue the power of the pushing force to indirectly push the elastic forcing piece 35, so the tops of the screw rods of the knobs will not scratch the surface of the upper and lower section pipes 40, 41, nor will they puncture the elastic forcing piece 35, and the elastic forcing piece The area of sheet 35 is large and can disperse external force, greatly reduces the pressure that produces to each section pipe wall, makes each section pipe more can not be out of shape thereby, and can keep the integrality of each component, firm and durable.

Also, in the foregoing embodiments, the upper and lower section pipes 40, 41 and the joint 3 are fixed at the same time, so the upper and lower knobs are used, and the lower knob 34 is usually immediately after the joint 3 is sleeved on the lower section pipe 41. No longer be disassembled and separated arbitrarily, so it can also be directly replaced by a general screw rod (as in this example), and at the same time, in order to avoid the occasional mutual interference when the upper and lower knobs 33, 34 simultaneously tighten the same elastic pressing piece 35 As shown in Figure 5, the two knobs can be separately installed on the corresponding two sides of the body of the joint 3, that is, an independent elastic forcing piece 35 and a metal spacer 36 are provided on the upper ring step 30, and at the same time On the lower ring step 31 of the other corresponding side, there are also independent elastic pressing pieces 35 and metal spacers 36, which are respectively controlled by corresponding knobs.

Claims (4)

1. An improved joint of frame body, the hole diameter of the joint is made into a double-ring step shape with a small upper part and a larger lower part, so as to be sleeved on the lower joint pipe and allow the upper joint pipe to freely extend into and extend out of the lower joint pipe. And by turning the knob screwed on the side of the joint, the upper section of the pipe can be tightened or released in due course, and it is characterized in that: Corresponding to the hole wall of the socket hole of the joint, there is at least one integrally formed axially at least one elastic forcing piece with one end connected to the joint body and the other end in a suspended state, and a narrow gap is reserved between the elastic forcing piece and the joint body. Slit for inserting a metal spacer, when the knob is tightened, the knob can indirectly push the elastic force piece through the metal spacer to tighten the joint tube. 2. The frame improved joint according to claim 1, characterized in that the joint is provided with a knob at the upper ring step and the lower ring step of the casing respectively. 3. The frame-improved joint according to claim 1, characterized in that the length of the elastic forcer and the metal spacer is equivalent to the axial length of the joint body, and the number is single. 4. An improved joint for frame body according to claim 1, characterized in that a set of elastic forcing pieces and metal spacers are respectively provided on the opposite sides of the upper and lower ring steps of the joint sleeve hole, and are matched to correspond to each other. The two knob faces are provided to independently control the two elastic forcing pieces to tighten the upper and lower section pipes respectively.

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