Quick fixing telescopic rod

Abstract

The utility model provides a fast fixing telescopic rod which comprises an outer pipe and an inner pipe, the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe, and the inner pipe can be contracted in the outer pipe. The buckling structure is arranged at the connecting position of the outer pipe and the inner pipe and used for positioning the inner pipe, and the buckling structure comprises a pressing cover arranged on the outer pipe in a sleeving mode, an elastic buckle body elastically connected into the pressing cover and a snap fastener assembly arranged on the pressing cover and used for locking the elastic buckle body. According to the rapid fixing telescopic rod, the stretching height of the inner pipe relative to the outer pipe and the locking strength of the inner pipe extending out of the outer pipe can be limited through the buckling structure arranged at the connecting position of the inner pipe and the outer pipe, and the elastic buckle body is elastically connected into the gland; the stretching height of the inner pipe relative to the outer pipe can be effectively limited, the elastic buckle body is buckled and fixed through the snap fastener assembly arranged on the pressing cover, the pressing cover can tightly hold the elastic buckle body, and the surveying and mapping precision of a user using the rapid fixing telescopic rod is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of surveying and mapping, and particularly relates to a fast-fixing telescopic rod. Background Art

[0002] The telescopic poles currently on the market are complicated to operate when retracting and extending the outer tube and the inner tube, and the locking strength of the outer tube and the inner tube after retraction and extension is insufficient, resulting in low efficiency for users to retract and extend the telescopic pole, affecting the user's surveying and mapping efficiency. In addition, the total height of the telescopic pole will change during use, and the extension height of the telescopic pole cannot be limited. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the existing telescopic rod, such as low retraction efficiency, affecting the user's mapping efficiency, and the total height of the telescopic rod will change during use, and the stretching height of the telescopic rod cannot be limited, and to provide a quick-fixing telescopic rod.

[0004] The utility model solves the technical problem by adopting the following technical solution: a quick-fix telescopic rod, comprising an outer tube and an inner tube, wherein the inner diameter of the outer tube is larger than the outer diameter of the inner tube, and the inner tube can be retracted inside the outer tube;

[0005] The invention also includes a buckle structure which is arranged at the connection between the outer tube and the inner tube and is used to position the inner tube. The buckle structure includes a pressure cover which is sleeved on the outer tube, a spring buckle body which is elastically connected to the pressure cover, and a snap assembly which is arranged on the pressure cover and is used to lock the spring buckle body.

[0006] Furthermore, the spring-lock body elastically connected to the pressure cover includes a plurality of spring-lock blades, the inner tube is provided with a plurality of inner tube limiting grooves for the spring-lock blades to be embedded in, a limiting convex portion is provided on the inner wall of the spring-lock blade, a limiting boss is provided on the limiting convex portion, and the inner tube limiting groove of the inner tube is provided with a plurality of limiting grooves for the limiting boss of the spring-lock blade to be embedded in.

[0007] Furthermore, the limiting protrusion on the snap-on blade is a hemispherical protrusion, the limiting boss is a hemispherical boss, the inner tube limiting groove is a hemispherical limiting groove adapted to the shape of the limiting protrusion, and the limiting groove on the inner tube limiting groove is a hemispherical groove adapted to the shape of the limiting boss, and the outer tube and the inner tube are clamped and fixed by embedding the limiting boss of the snap-on blade into the limiting groove of the inner tube limiting groove.

[0008] Furthermore, a sliding groove is provided on the outer wall of the spring buckle blade of the spring buckle body, a sliding boss for embedding into the sliding groove is provided on the inner wall of the pressure cover, and the spring buckle body is slidably connected to the pressure cover through the sliding groove.

[0009] Furthermore, a limiting step surface is provided at the top end of the sliding groove, and a spring for elastically connecting the spring buckle body to the pressure cover is also provided between the pressure cover and the spring buckle body.

[0010] Furthermore, the snap button assembly includes a snap button disposed on the pressing cover and a rotating shaft for rotatably connecting the snap button to the pressing cover, and the tail end of the snap button forms a fixing boss for embedding into the snap button body.

[0011] Furthermore, a fixing hole for the fixing boss of the snap button to be embedded is provided on the snap button body, and the pressure cover is fixed to the snap button body by embedding the fixing boss of the snap button into the fixing hole of the snap button body.

[0012] Furthermore, the snap button assembly also includes a spring sheet which is arranged between the snap button and the spring button body and is used to elastically connect the snap button and the spring button body.

[0013] Furthermore, the inner tube is provided with a sliding base and an exhaust rubber plug arranged between the sliding base and the inner tube, and the bottom of the outer tube is provided with a ground-piercing toe and a toe connecting column for connecting the ground-piercing toe to the bottom of the outer tube.

[0014] Furthermore, a mounting groove for mounting the outer tube is provided in the toe connecting column.

[0015] The beneficial effect of the quick-fix telescopic rod provided by the utility model is that: the stretching height of the inner tube relative to the outer tube and the locking strength after the inner tube extends out of the outer tube can be limited by the buckle structure arranged at the connection between the inner tube and the outer tube, wherein the stretching height of the inner tube relative to the outer tube can be effectively limited by the spring buckle body elastically connected to the pressure cover, and after the outer tube extends out of the inner tube, the spring buckle body is fixed by the snap assembly arranged on the pressure cover, so that the pressure cover can hold the spring buckle body tightly, thereby ensuring the locking strength between the outer tube and the inner tube, thereby avoiding the total height of the telescopic rod from changing during use, and ensuring the surveying and mapping accuracy of the user using the quick-fix telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a quick-fix telescopic rod provided by the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 This is a schematic diagram of the structure of a quick-fix telescopic rod provided by the utility model after removing the gland;

[0019] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0020] Figure 5 for Figure 3 A partial enlarged view of point C in the middle;

[0021] Figure 6 This is a structural schematic diagram of a spring buckle body in a quick-fix telescopic rod provided by the utility model;

[0022] Figure 7 A cross-sectional view of a spring buckle body in a quick-fix telescopic rod provided by the utility model;

[0023] Figure 8 The utility model is a schematic structural diagram of a quick-fixing cover in a telescopic rod.

[0024] Fig. 9 A schematic diagram of the structure of a spring buckle body in a quick-fix telescopic rod provided by the utility model being assembled on an inner tube;

[0025] In the figure:

[0026] 100-A quick-fix telescopic rod,

[0027] 10-outer tube, 20-inner tube, 21-inner tube limit groove, 211-limit groove, 22-outer connection screw thread,

[0028] 30- buckle structure, 31- pressure cover, 311- sliding boss, 312- anti-mistaken touch boss, 313- anti-slip pattern, 32- snap button body, 321- snap button blade, 3211- limiting convex part, 3211a- limiting boss,

[0029] 3212-sliding groove, 3212a-limiting step surface, 322-fixing hole, 323-mounting platform,

[0030] 33- snap assembly, 331- snap, 3311- fixed boss, 332- rotating shaft, 333- spring sheet,

[0031] 40-toe connecting column, 41-installation groove, 50-ground-piercing toe, 60-sliding base, 70-exhaust rubber plug. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0033] See also Figure 1-9, is a quick-fix telescopic rod 100 provided by the utility model, the quick-fix telescopic rod 100 comprises an outer tube 10 and an inner tube 20, the inner diameter of the outer tube 10 is larger than the outer diameter of the inner tube 20, and the inner tube 20 can be retracted in the outer tube 10; the quick-fix telescopic rod 100 also includes a buckle structure 30 arranged at the connection between the outer tube 10 and the inner tube 20 and used to position the inner tube 20, the buckle structure 30 includes a pressure cover 31 sleeved on the outer tube 10, a snap body 31 elastically connected to the pressure cover 31, and a snap 331 component 33 arranged on the pressure cover 31 for locking the snap body 31. Among them, the spring buckle body 31 elastically connected to the pressure cover 31 includes a plurality of spring buckle blades 321, and the inner tube 20 is provided with a plurality of inner tube limiting grooves 21 for the spring buckle blades 321 to be embedded in. A limiting protrusion 3211 for embedding in the inner tube limiting groove 21 is provided on the inner wall of the spring buckle blade 321, and a limiting boss 3211a is provided on the limiting boss 3211. The inner tube limiting groove 21 of the inner tube 20 is provided with a plurality of limiting grooves 211 for the limiting boss 3211a of the spring buckle blade 321 to be embedded in. The limiting convex part 3211 on the snap-on blade 321 is a hemispherical convex part, the limiting boss 3211a is a hemispherical boss, the inner tube limiting groove 21 is a hemispherical limiting groove that matches the outer shape of the limiting convex part 3211, and the limiting groove 211 on the inner tube limiting groove 21 is a hemispherical groove that matches the outer shape of the limiting boss 3211a. By embedding the limiting boss 3211a of the snap-on blade 321 into the limiting groove 211 of the inner tube limiting groove 21, the outer tube 10 and the inner tube 20 are fixed by being inserted. A spring for elastically connecting the snap-on body 31 to the inside of the press cap 31 is also provided between the press cap 31 and the snap-on body 31. When the user needs to use the quick-fix telescopic rod 100, first press the snap button 331 component 33 to release the snap-on fixing state between the snap button 331 component 33 and the spring button body 31, then pull the inner tube 20 upward, and make the spring button body 31 elastically move relative to the pressure cover 31 under the squeezing force of the spring button blade 321 and the inner tube limiting groove 21 until the inner tube 20 is pulled relative to the outer tube 10 to a suitable surveying height and the limiting boss 3211a on the spring button blade 321 is embedded in the limiting groove 211 of the inner tube limiting groove 21, thereby ensuring the stability of the embedded fixation between the inner tube 20 and the spring button body 31. At the same time, by setting the limiting groove 211 on the inner tube 20 to a hemispherical groove that is compatible with the limiting boss 3211a of the hemispherical boss, it can be effectively ensured that the limiting boss 3211a is embedded in the limiting groove 211, and it can be effectively avoided that after the limiting boss 3211a of the spring buckle body 31 is embedded in the limiting groove 211, relative sliding can still occur between the inner tube 20 and the outer tube 10.Then, the pressure cover 31 drives the main body of the snap button 331 to move elastically under the elastic force of the spring, and the snap button 331 assembly 33 is embedded and fixed to the main body of the snap button 31, so that the pressure cover 31 holds the main body of the snap button 31 tightly, thereby further improving the stability of the embedded fixation between the inner tube 20 and the snap button main body 31, ensuring the locking strength between the outer tube 10 and the inner tube 20 after the inner tube 20 extends out of the outer tube 10, thereby avoiding the change in the total height of the telescopic rod during use, and ensuring the mapping accuracy of the user using the quick-fix telescopic rod 100. In addition, in the embodiment provided by the utility model, the hemispherical boss and the hemispherical groove can also be a V-shaped boss and a V-shaped groove, or other bosses with beveled edges and grooves with beveled edges. The V-shape and the beveled edges are to facilitate the boss and the corresponding groove to be easily separated from each other in the unlocked state.

[0034] like Figure 6 and Figure 7 As shown, a sliding groove 3212 is provided on the outer wall of the snap blade of the snap body 31, and a sliding boss 311 for embedding into the sliding groove 3212 is provided on the inner wall of the pressure cover 31, and the snap body 31 is slidably connected with the pressure cover 31 through the sliding groove 3212. A limited step surface 3212a is provided at the top of the sliding groove 3212. By embedding the sliding boss 311 on the inner wall of the pressure cover 31 into the sliding groove 3212 of the snap blade of the snap body 31, the displacement of the snap body 31 when elastically sliding relative to the pressure cover 31 can be effectively limited, and the snap body 31 can be prevented from shaking left and right when elastically sliding relative to the pressure cover 31. In addition, under the dual action of the inner tube limiting groove 21 on the inner tube 20, the displacement of the snap body 31 when elastically sliding relative to the pressure cover 31 can be further limited, thereby effectively ensuring the displacement accuracy of the snap body 31 when elastically moving. After the limiting boss 3211a on the snap blade 321 of the snap body 31 is inserted into the limiting groove 211 of the inner tube limiting groove 21, the pressing cover 31 drives the snap button 331 assembly 33 to snap and fix the snap body 31 under the elastic force of the spring, and the sliding boss 311 can effectively move the pressing cover 31 along the direction set by the sliding groove 3212 on the snap blade 321, thereby ensuring the displacement of the pressing cover 31 during the sliding process, and further ensuring the displacement accuracy of the snap button 331 assembly 33 snapping and fixing the snap body 31. The limiting step surface 3212a set at the top of the sliding groove 3212 can effectively limit the relative position between the pressing cover 31 and the snap body 31 under the elastic force of the spring, thereby effectively ensuring that the snap button 331 assembly 33 is snapped and fixed in the snap body 31, and ensuring the snap fixing accuracy of the snap button 331 assembly 33. In the embodiment provided by the utility model, a mounting platform for mounting a spring is further provided on the spring buckle body 31 , so as to ensure the stability of the spring installed between the spring buckle body 31 and the pressure cover 31 .

[0035] like Figure 3 and Figure 4 As shown, the snap button 331 assembly 33 includes a snap button 331 disposed on the pressure cover 31 and a rotating shaft 332 for rotatably connecting the snap button 331 to the pressure cover 31, and the tail end of the snap button 331 forms a fixing boss 3311 for embedding into the snap body 31. The snap body 31 is provided with a fixing hole 322 for the fixing boss 3311 of the snap button 331 to be embedded, and the pressure cover 31 is fixed to the snap body 31 by embedding the fixing boss 3311 of the snap button 331 into the fixing hole 322 of the snap body 31. The snap button 331 assembly 33 also includes a spring sheet 333 disposed between the snap button 331 and the snap body 31 and used to elastically connect the snap button 331 to the snap body 31. When the user needs to stretch the inner tube 20, first press the front end of the snap button 331 so that the fixed boss 3311 at the tail end of the snap button 331 forms a lever structure under the action of the spring piece 333 and the rotating shaft 332 and disengages from the fixing hole 322 of the snap button body 31, so as to release the snap button 331 component 33 and the snap button body 31 from the embedded fixed state, and then pull the inner tube 20 upward by hand, so that the snap button body 31 elastically moves under the dual squeezing force of the inner tube limiting groove 21 and the sliding boss 311 on the inner wall of the pressure cover 31 to pull the inner tube 20 to a suitable height and make the positioning boss of the snap button blade 321 embed into the limiting groove 211 of the inner tube limiting groove 21, and then the user loosens the pressure cover 31, so that the pressure cover 31 drives the snap button component under the action of the spring. The snap button 331 moves along the sliding groove 3212 of the spring buckle blade 321, and makes the sliding boss 311 abut against the limiting step surface 3212a at the top of the sliding groove 3212. At this time, the snap button 331, under the action of the spring piece 333, embeds the fixing boss 3311 at the tail end into the fixing hole 322 of the spring buckle body 31, so that the snap button 331 is embedded in the fixing hole 322 of the spring buckle body 31, and then the pressure cover 31 holds the spring buckle body 31 tightly, and further fits the limiting boss 3211a on the spring buckle blade 321 into the limiting groove 211 of the inner tube limiting groove 21, and improves the locking strength after the inner tube 20 extends out of the outer tube 10, so as to avoid the total height of the telescopic rod from changing during use, and ensure the surveying and mapping accuracy of the user using the quick-fix telescopic rod 100. In the embodiment provided by the utility model, the pressure cover 31 is also provided with an anti-mistaken touch boss 312 for preventing the button 331 assembly 33 from being accidentally touched, thereby effectively improving the control accuracy of the user using the button 331 assembly 33. The pressure cover 31 is also provided with an anti-slip pattern 313, thereby improving the stability of holding the pressure cover 31.

[0036] like Figure 3 and Figure 5As shown, the inner tube 20 is also provided with a sliding base 60 and an exhaust rubber plug 70 arranged between the sliding base 60 and the inner tube 20, and the bottom of the outer tube 10 is provided with a ground-piercing toe 50 and a toe connecting column 40 for connecting the ground-piercing toe 50 to the bottom of the outer tube 10. The toe connecting column 40 is provided with a mounting groove 41 for mounting the outer tube 10. By mounting the bottom end of the outer tube 10 in the mounting groove 41 of the toe connecting column 40, the inner and outer walls of the outer tube 10 can be strengthened and protected, greatly enhancing the anti-burst ability of the outer tube 10, avoiding the outer tube 10 that adopts a thin-walled tube or a composite fiber tube, and bursting at the port of the outer tube when the tube body is pressure-measured. In addition, the toe toe connecting column 40 in the utility model uses a hollow metal tube as a raw material, and then uses a mold to extrude it into a required shape, thereby reducing the material cost and processing cost while achieving the overall lightweight of the quick-fix telescopic rod 100. In the embodiment provided by the utility model, an external connection screw thread 22 for connecting and installing with a surveying and mapping device is provided on the top of the inner tube 20, thereby effectively improving the adaptability of the quick-fix telescopic rod 100.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-fix telescopic rod, comprising an outer tube (10) and an inner tube (20), wherein the inner diameter of the outer tube (10) is greater than the outer diameter of the inner tube (20), and the inner tube (20) can be retracted inside the outer tube (10); It is characterized in that The quick-fix telescopic rod also includes a buckle structure (30) arranged at the connection between the outer tube (10) and the inner tube (20) and used to position the inner tube (20), the buckle structure (30) including a pressure cover (31) sleeved on the outer tube (10), a spring buckle body (32) elastically connected to the pressure cover (31) and used to limit the position of the inner tube (20), and a snap assembly (33) arranged on the pressure cover (31) and used to lock the spring buckle body (32).

2. A quick-fix telescopic rod as claimed in claim 1, characterized in that: The snap-on body (32) elastically connected to the gland (31) comprises a plurality of snap-on blades (321); the inner tube (20) is provided with a plurality of inner tube limiting grooves (21) for the snap-on blades (321) to be embedded in; the inner wall of the snap-on blade (321) is provided with a limiting convex portion (3211) embedded in the inner tube limiting groove (21); the limiting convex portion (3211) is provided with a limiting boss (3211a); and the inner tube limiting groove (21) of the inner tube (20) is provided with a plurality of limiting grooves (211) for the limiting boss (3211a) of the snap-on blade (321) to be embedded in.

3. A quick-fix telescopic rod as claimed in claim 2, characterized in that: The limiting protrusion (3211) on the snap-on blade (321) is a hemispherical protrusion, the limiting boss (3211a) is a hemispherical boss, the inner tube limiting groove (21) is a hemispherical limiting groove that matches the outer shape of the limiting protrusion (3211), and the limiting groove (211) on the inner tube limiting groove (21) is a hemispherical groove that matches the outer shape of the limiting boss (3211a). The limiting boss (3211a) of the snap-on blade (321) is embedded in the limiting groove (211) of the inner tube limiting groove (21), so that the outer tube (10) and the inner tube (20) are locked and fixed.

4. A quick-fix telescopic rod as claimed in claim 2, characterized in that: A sliding groove (3212) is arranged on the outer wall of the snap blade (321) of the snap body (32), and a sliding boss (311) for being embedded in the sliding groove (3212) is arranged on the inner wall of the pressure cover (31), and the snap body (32) is slidably connected to the pressure cover (31) via the sliding groove (3212).

5. A quick-fix telescopic rod as claimed in claim 4, characterized in that: A limited step surface (3212a) is provided at the top end of the sliding groove (3212), and a spring for elastically connecting the spring buckle body (32) to the inside of the pressing cover (31) is also provided between the pressing cover (31) and the spring buckle body (32).

6. The quick-fix telescopic rod according to claim 1, characterized in that: The snap button assembly (33) comprises a snap button (331) arranged on the pressing cover (31) and a rotating shaft (332) for rotatably connecting the snap button (331) to the pressing cover (31), and the tail end of the snap button (331) forms a fixing boss (3311) for embedding into the snap button body (32).

7. A quick-fix telescopic rod as claimed in claim 6, characterized in that: The snap button body (32) is provided with a fixing hole (322) for the fixing boss (3311) of the snap button (331) to be embedded, and the fixing boss (3311) of the snap button (331) is embedded in the fixing hole (322) of the snap button body (32) so that the pressure cover (31) and the snap button body (32) are locked and fixed.

8. A quick-fix telescopic rod as claimed in claim 7, characterized in that: The snap button assembly (33) further comprises a spring sheet (333) which is arranged between the snap button (331) and the snap button body (32) and is used to elastically connect the snap button (331) and the snap button body (32).

9. The quick-fix telescopic rod according to claim 1, characterized in that: The inner tube (20) is also provided with a sliding base (60) and an exhaust rubber plug (70) arranged between the sliding base (60) and the inner tube (20), and the bottom of the outer tube (10) is provided with a ground-piercing toe (50) and a toe connecting column (40) for connecting the ground-piercing toe (50) to the bottom of the outer tube (10).

10. The quick-fix telescopic rod according to claim 9, characterized in that: The toe connecting column (40) is provided with a mounting groove (41) for mounting the outer tube (10).

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