CN2529806Y - Adjustable device for the handle - Google Patents

Abstract

An adjustable handle for a stroller, the handle having a fixed link and an adjustment link pivotally mounted to the fixed link, the adjustable handle comprising: the adjusting seat is connected to the fixed rod and provided with an embedded part and a through hole, and the embedded part is provided with an accommodating groove which is coaxial with the through hole; a pivoting seat, which is connected with the adjusting rod and is provided with a clamping part and a shaft hole; the clamping part and the embedding part are matched and limited; an elastic element for relatively limiting the clamping part and the embedding part to be in a non-clamping state in a normal state; the quick-dismantling assembly is provided with a supporting rod penetrating into the through hole and the shaft hole, a handle and a positioning piece, wherein the handle is also provided with an eccentric convex part pressing the pivoting seat and the adjusting seat. The utility model has the advantages of simple structure, good positioning effect and low manufacturing cost.

Description

Adjustable device for the handle

【Technical field】

The utility model relates to a handle, in particular to an adjustable device for the handle.

【Background technique】

In order to be able to adapt to the use of people of various heights, general trolleys usually need to be provided with height-adjustable handles on the trolley, so that the user can adjust the position of the handle according to the height of the individual when pushing the trolley, so as to achieve The most comfortable use effect.

As shown in Figures 1 and 2, in terms of the existing adjustment device for the handle, the handle 1 has a fixed rod 11 that can be bent to each other, and a fixed rod that can be bent and pivoted to the fixed rod. The adjusting rod 12 of 11, the fixing rod 11 is fixedly connected to the rod body of the trolley, and the adjusting rod 12 is connected to the fixing rod 11 in a rotatable and displaceable manner by the adjusting device 2 .

As shown in Figures 2, 3 and 4, the adjustment device 2 includes an adjustment seat 21 connected to the fixed rod 11, a pivot seat 22 connected to the adjustment rod 12, an elastic element 23, a A ratchet-shaped clamping block 24, a locking lever 25, a push button 26, and a positioning nut 27, the adjustment seat 21 has a ratchet groove 211 for the clamping block 24 to be accommodated, and a The ratchet slot 211 is concentric with the through hole 212, a fitting rod 213 protruding from the through hole 212 for the sleeve of the elastic element 23, and a pin 231 of the elastic element 23 to resist Lean on the bottom wall 214. The clamping block 24 can be relatively accommodated in the ratchet slot 211 , and has an axial through hole 241 that can be inserted into the fitting rod 213 , and a slot wall 242 that can resist the other pin 232 of the elastic element 23 . The pivot base 22 has a ratchet groove 221 corresponding to the clamping block 24, a through hole 222 coaxial with the ratchet groove 221, and two limit stops for the push button 26 to be installed. Hole 223. The push button 26 has two detent levers 261 protruding from its outer edge, and the end portion of each detent lever 261 has a slightly expanded convex portion 2611, so that the two detent levers 261 can be inserted into the two detent levers 261. The time limit hole 223 is located on the pivot base 22 . The locking rod 25 can pass through the through holes 212, 222 of the adjusting seat 21 and the pivoting seat 22, and has a limiting end 251 and an external threaded portion 252 opposite to the limiting end 251. The external threaded portion 252 is for screwing the positioning nut 27 to relative to the limiting end 251 to limit the adjusting seat 21 and the pivoting seat 22 . With the above composition, when the push button 26 is pressed, the two detent levers 261 can relatively push the clamping block 24 to shift, so that the clamping block 24 escapes from the ratchet groove 221 of the pivot base 22 (as shown in FIG. 4), the pivotal seat 22 can be rotated as the center to adjust the position of the adjustment lever 12, and achieve the effect of adjusting the height of the handle 1.

Although the adjustment device 2 of the above-mentioned handle 1 can achieve the function of adjusting the height of the handle 1, it still has the following deficiencies to be improved in actual use:

1. The adjusting seat 21 and the pivoting seat 22 are locked and positioned relative to each other by means of the ratchet teeth of the locking block 24, but it is too tight when the teeth are matched, making it difficult to adjust the handle 1, so both The ratchet grooves 211, 221 of the adjusting seat 21 and the pivoting seat 22 are expanded to facilitate the adjustment of the adjusting rod 12, and therefore the adjusting seat 21 and the pivoting seat 22 are likely to cause inaccurate positioning conditions. It is better to form a loose situation, which will affect its actual use efficiency.

2. Since the adjustment device 2 is assembled, it is necessary to first insert the locking rod 25 into the through hole 222 of the pivot base 22, and then insert the two locking rods 261 of the push button 26 into the pivot seat 22. In the two limit holes 223 of the seat 22, at the same time, the elastic element 23 needs to be sleeved on the fitting rod 213, and the clamping block 24 is relatively accommodated in the ratchet groove 211, and leans against the On the elastic element 23, then the pivot seat 22 and the adjustment seat 21 are connected to each other, and the locking rod 25 can be assembled by the positioning nut 27 to complete the assembly, so the adjustment device 2 obviously has the disadvantage of assembling. Convenience and long assembly hours are missing.

【Content of utility model】

The purpose of the utility model is to provide an adjustable handle device with simple structure, good positioning effect and low manufacturing cost.

In order to achieve the above object, the utility model provides an adjustable device for the handle, the handle has a fixed rod that can be bent mutually, and an adjustment rod that is pivotally arranged on the fixed rod in a bendable manner, The adjustable device of the handle is characterized in that it comprises:

An adjustment seat is connected to the fixed rod. The adjustment seat has a rotation center, an embedding part set with the rotation center as the central axis, and a through hole coaxial with the rotation center. The part also has an accommodating groove coaxial with the through hole;

A pivot seat is connected to the adjustment rod, and the pivot seat has a rotation center corresponding to the rotation center, a clamping part set with the rotation center as the central axis, and a coaxial with the rotation center to the shaft hole; the clamping part also has a receiving groove coaxial with the shaft hole, and the pivot seat and the adjustment seat are engaged with each other, and the clamping part can be matched with the embedded part, so that The clamping part and the embedded part form a rotation limit;

An elastic element has a first pin arranged in the receiving groove and resisted on a shaft wall of the embedded part, and a shaft wall arranged in the receiving groove and resisted on the clamping part The second pin on the top; the elastic element can relatively limit the clamping part and the embedded part under normal conditions, so that the clamping part and the embedded part form an unengaged state;

A quick release group has a support rod that penetrates the through hole and the shaft hole, a handle and a positioning piece, and the support rod also has an end that is engaged with the positioning piece, and another pivotal connection with the handle At the end, the handle also has an eccentric protrusion that can press the pivoting seat and the adjusting seat, so that the locking part and the embedded part form a locking state.

The adjustable device of the handle is characterized in that: the adjustment seat further has a ring body that surrounds the circumference of the embedded part and forms a fitting groove with the embedded part, and the pivotal seat further has a The protruding ring body surrounding the clamping part can be relatively accommodated in the fitting groove when the adjusting seat is engaged with the pivoting seat.

To sum up the above, the effects and advantages that can be obtained by the adjustable handle of the utility model are as follows:

1. Since the utility model not only uses the eccentric convex part 4421 of the handle 442 to push the pivot seat 42, so that the pivot seat 42 and the adjustment seat 41 are engaged to form a rotation limit, but also can use The positioning member 443 and the eccentric convex portion 4421 relatively limit the pivot seat 42 and the adjustment seat 41, so that the two can achieve axial positioning and connection, so there will be no looseness, so the positioning effect of the present invention is better. The adjustment device 2 of the existing handle 1 is much better.

2. Since the utility model only needs to accommodate the elastic element 43 between the pivot seat 42 and the adjustment seat 41 during assembly, and then assemble the quick release group 44, the purpose of installation can be achieved, so Compared with the adjustment device 2 of the existing handle 1, the assembling is more convenient, and the man-hours for assembling can be greatly reduced.

3. Since the quick release assembly 44 and the elastic element 43 of the present invention are general standardized components, the structure of the adjusting device 2 of the handle 1 is simpler than that of the existing handle 1, and the manufacturing cost can be reduced.

4. Since the utility model only needs to pull the handle 442 to tighten or loosen the adjusting group 41 and the pivoting group 42, the purpose of adjusting the height of the handle 3 can be achieved, so it has flexible maneuverability and practicality.

The adjustable device of the handle of the present utility model is described in detail below through preferred embodiments and accompanying drawings:

【Description of drawings】

Fig. 1 is a perspective view of a conventional trolley.

Fig. 2 is a schematic view of the use state of the conventional handle adjusting device.

FIG. 3 is a schematic cross-sectional view of a conventional handle adjusting device.

Fig. 4 is a view similar to Fig. 3, illustrating the state after the pressing body is pressed.

Fig. 5 is a three-dimensional exploded view illustrating an embodiment of the handle adjustable device of the present invention.

Fig. 6 is a schematic plan view of the preferred embodiment.

Fig. 7 is a schematic diagram of a use state of the preferred embodiment.

FIG. 8 is a combined cross-sectional schematic view of the preferred embodiment.

Fig. 9 is a view similar to Fig. 8, illustrating the condition of the adjusting group and the pivoting group being locked.

Fig. 10 is a cross-sectional view taken at the joint position of the pivot seat and the handle in Fig. 8 as a section line.

Figure 11 is a view similar to Figure 10, showing the support rod in a different position.

FIG. 12 is a view similar to FIG. 8 , illustrating a combined cross-sectional view of the supporting rod when it is located in the second receiving hole.

【Detailed ways】

As shown in Figures 5, 6, and 8, an embodiment of the adjustable device of the handle of the present invention, the handle 3 has a fixed rod 31 that can be bent to each other, and a pivot that can be bent On the adjusting rod 32 of the fixing rod 31 , the adjustable device 4 includes an adjusting seat 41 , a pivoting seat 42 , an elastic element 43 , and a quick release assembly 44 .

The adjustment seat 41 is connected to the fixed rod 31 and has a rotation center 411, an embedded part 412 formed with the rotation center 411 as the central axis, and an embedded part 412 that surrounds the embedded part 412 and is connected to the The ring body 413 of the fitting groove 400 is formed between the embedded parts 412, and a through hole 414 coaxial with the rotation center 411. In addition, the embedded part 412 has a receiving groove coaxial with the through hole 414 4121.

The pivot base 42 is connected to the adjustment rod 32 and has a rotation center 421 corresponding to the rotation center 411, a clamping portion 422 formed with the rotation center 421 as the central axis, and a clamping portion 422 surrounding the clamping portion. The protruding ring body 423 around the part 422, and a shaft hole 424 coaxial with the rotation center 421, the locking part 422 has a receiving groove 4221 coaxial with the shaft hole 424, and the adjustment seat 41 and the pivot seat 42 can be connected to each other through the rotation center 411 and the rotation center 421, then the clamping portion 422 can be matched with the embedded portion 412, so that the clamping portion 422 and the embedded portion 412 forms a rotation limit, and at the same time, the protruding ring body 423 is accommodated in the fitting groove 400 .

The elastic element 43 has a first pin 431 disposed in the receiving groove 4121 and resisted on a shaft wall 4122 of the embedded part 412, and a first pin 431 disposed in the receiving groove 4221 and resisted on the card The second pin 432 on a shaft wall 4222 of the clamping part 422, and the elastic element 43 can relatively limit the clamping part 422 and the embedded part 412 under normal conditions, so that the clamping part 422 and the embedded part 412 forms a disengagement state.

A quick release group 44 has a support rod 441 that can pass through the through hole 414 and the shaft hole 424, a handle 442 that is arranged on one side of the pivot base 42, and a handle 442 that is arranged on the other side of the adjustment base 41 The positioning piece 443, the support rod 441 has an end that can be engaged with the positioning piece 443, and the other end that can be pivoted by the handle 442, and the handle 442 has a rotation that can press the The pivoting seat 42 makes the locking part 422 and the embedding part 412 form an eccentric convex part 4421 in a locking state.

When assembling, as shown in Figures 5, 6 and 8, the first pin 431 of the elastic element 43 is placed in the receiving groove 4121, and resisted on a shaft wall 4122 of the embedded part 412, and then the The pivot base 42 and the adjustment base 41 are connected to each other through the rotation center 411 and the rotation center 421 , so that the second pin 432 of the elastic element 43 will resist against a shaft wall 4222 of the clamping portion 422 , and then, the handle 442 is pivotally mounted on one end of the support rod 441, and the support rod 441 passes through the shaft hole 424 of the pivot base 42 and the through hole 414 of the adjustment base 41, and then engages with the positioning member 443 , then the pivoting seat 42 and the adjusting seat 41 can be relatively limited on the supporting rod 441 by the positioning member 443 and the handle 442 to be in a connected state.

When in use, as shown in Figures 5, 6, and 8, when the pivoting seat 42 and the adjusting seat 41 are limited on the support rod 441 by the positioning member 443 and the handle 442 to be in a connected state, the elastic element 43 is to limit the clamping portion 422 and the embedded portion 412 relative to each other, so that the clamping portion 422 and the embedded portion 412 are not engaged.

As shown in Figures 7, 8, and 9, when the handle 442 is rotated by an external force, its eccentric protrusion 4421 will just push against the pivot seat 42, and the elastic element 43 will be indirectly compressed, so that the The pivoting seat 42 can be displaced toward the direction of the adjusting seat 41 , and the locking portion 422 and the embedded portion 412 will form a locking state.

As shown in Figures 7, 8, and 9, it can be seen from the above description that when the utility model is assembled, if you want to adjust the height of the handle 3, you only need to pull the handle 442, and by the elastic recovery force of the elastic element 43 Make the locking part 422 and the embedding part 412 form a disengagement state, the pivot seat 42 can be rotated, and the adjustment rod 32 can be linked to make the adjustment rod 32 rotate to an appropriate height, and when the adjustment rod 32 is located at an appropriate height, and then pull the handle 442 so that the eccentric protrusion 4421 is pushed against the pivot seat 42, the pivot seat 42 and the adjustment seat 41 can be positioned, and the height of the handle 3 can be adjusted. Function.

In addition, when the adjustable device of the handle of the present invention is installed on the trolley, in order to prevent the handle 442 from being accidentally pulled, causing the handle 3 to loosen immediately, a safety device is provided so that the handle 442 is pulled After opening, the adjusting seat 41 and the pivoting seat 42 are still in a locked and positioned state.

The safety device is that a progressively expanding resisting portion 4411 is provided at the end of the supporting rod 441, and the pivot base 42 is provided with a larger expansion than the resisting portion 4411 relative to the port of the shaft hole 424 where the supporting rod 441 is installed. The first accommodating hole 4241 and a second accommodating hole 4242 which is smaller than the expansion of the resisting portion 4411 and coaxial with the first accommodating hole 4241 . As shown in Figures 8 and 10, when the support rod 4411 penetrates into the shaft hole 424 through the first accommodating hole 4241, the first accommodating hole 4241 will not limit the displacement of the support rod 441, so the adjustment seat 41 and the pivot seat 42 can form a maximum separation state, and the embedded part 412 and the locking part 422 of the two will not form an engaged state, so the handle 3 can be adjusted to the most appropriate position at any time. As shown in Figures 11 and 12, when the support rod 441 penetrates into the shaft hole 424 through the second accommodating hole 4242, the second accommodating hole 4242 will limit the displacement of the support rod 441, so that the elastic element 43 Still in a slightly compressed state (as shown in Figure 12), so the embedding portion 412 and the clamping portion 422 of the adjustment seat 41 and the pivot seat 42 will form an engaged state, and at this time, the handle 3 cannot be adjusted to the maximum position. Modest location. To sum up, when the operator uses the handle 442 to drive the support rod 441 to rotate to the first accommodating hole 4241 (as shown in FIG. 10 ), and then uses the eccentric protrusion 4421 of the handle 442 to push and position the adjustment seat 41 and After the pivoting seat 42, it can adjust the position of the handle 3 at any time when the handle 442 is opened again. Relatively, when the operator drives the support rod 441 to rotate to the second accommodating hole 4242 by the handle 442 (such as Fig. 11), after positioning the adjusting seat 41 and the pivoting seat 42 by means of the eccentric convex portion 4421 of the handle 442, it pulls the handle 442 again, and the adjusting seat 41 and the pivoting seat 42 will still be in the position In the locked state, the position of the handle 3 needs to be adjusted by turning the support rod 441 to the first receiving hole 4241.

Claims (2)

1, a kind of tunable arrangement of handle, this handle have a fixed link that is stationary state, and one be the adjusting lever that is hubbed at this fixed link bently, and the tunable arrangement of this handle is characterized in that: comprise:

One adjusts seat, is arranged on this fixed link, and it is the set embedding system portion of central axis with this center of turn that this adjustments seat has a center of turn,, and one with the homoaxial perforation of this center of turn, this embedding system portion also has one and the storage tank of this perforation concentric;

One pivot block is arranged on this adjusting lever, and it is the set fastening part of central axis with this centre of gration that this pivot block has a pair of centre of gration, that should center of turn, and one with the homoaxial axis hole of this centre of gration; This fastening part also have one with the holding groove of this axis hole concentric, and this pivot block and this adjustment be bonded with each other, and this fastening part and this embedding system portion are involutory mutually rotary spacing;

One elastic element has one and is arranged in this storage tank and first pin of resistance on an axial wall of this embedding system portion, and one is arranged in this holding groove and second pin of resistance on an axial wall of this fastening part;

One quick detach group, have cramp bar, one handle and a positioning piece that penetrates this perforation and this axis hole, this cramp bar also has an end that engages with this locations, and an in addition end that is pivoted with this handle, and this handle also has an eccentric protuberance that urges this pivot block and this adjustment.

2, the tunable arrangement of handle as claimed in claim 1, it is characterized in that: this adjustment seat also has one and is surrounded on the ring body that is provided with fit slot between this this embedding system portion of ring Zhou Eryu of embedding system portion, and this pivot block also has a convex ring body that is surrounded on this fastening part ring week, and this convex ring body receives in this fit slot relatively.

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