Timer connecting piece limiting structure

Abstract

The utility model relates to the technical field of timing equipment, in particular to a timer connecting piece limiting structure which comprises a movement, an adapter, a limiting swing arm and two limiting blocks. The adapter is driven by the movement to rotate; a protruding rotation limiting part is arranged on the adapter; an annular bulge is arranged at the end part of the rotation limiting part; one end of the limiting swing arm is fixed, the other section of the limiting swing arm is a free end, and the free end is limited to swing between the two limiting blocks; the limiting swing arm is located in the stroke of circular motion of the rotation limiting part. An annular groove matched with the annular protrusion is formed in the end of the limiting swing arm. The connecting piece has the advantages that the limiting swing arm capable of swinging is arranged to replace a limiting block to limit the connecting piece, and therefore the connecting piece can rotate by more than 360 degrees. And the annular bulge is matched with the annular groove, so that the rotation limiting part is stably propped against the limiting swing arm.

Description

Technical Field

[0001] The utility model relates to the technical field of timing equipment, in particular to a timer connecting piece limiting structure. Background Art

[0002] The timer is designed based on timing, and is used to provide a countdown reminder when the time is up. For example, when the scheduled time is reached, the timer will ring to remind the timer that the scheduled time has arrived. The timer has a small structure, convenient timing operation, and strong practicality, and is widely used.

[0003] The Chinese utility model with application number 202320540537.1 discloses a timer, which includes a timing body, a limit structure arranged on the timing body, a switch, a movement and a connecting piece, the connecting piece rotates under the action of the movement, and also includes an angle compensation mechanism, the angle compensation mechanism includes a swinging piece, the swinging piece is rotatably arranged on the connecting piece, a connecting limit block is provided on the connecting piece, the swinging piece is provided with a swing limit block acting on the limit structure and a slide groove for compensating the rotation angle of the connecting piece, the slide groove is an arc structure, and the connecting limit block moves in the slide groove. In the above utility model, when the connecting limit block is turned to the end timing position, the swing limit block of the swinging piece contacts the limit structure on the body, triggers the switch, and the control element controls the movement to stop working, thereby meeting the requirement that the connecting piece rotates 360 degrees when the timing is 60 minutes. However, the limit structure of the above connecting piece is complex in structure and high in cost, which is not conducive to consumer acceptance. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a timer connecting piece limiting structure with simple structure and stable limiting.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: to provide a timer connecting piece limiting structure, including a movement, a switching piece, a limiting swing arm and two limiting blocks;

[0006] The adapter rotates under the drive of the movement; a protruding rotation-limiting portion is provided on the adapter; an annular protrusion is provided at the end of the rotation-limiting portion;

[0007] One end of the limit swing arm is fixed, and the other end is a free end, and the free end is limited to swing between the two limit blocks;

[0008] The position-limiting swing arm is located within the travel of the circular motion of the rotation-limiting portion; and an annular groove matching the annular protrusion is provided at the end of the position-limiting swing arm.

[0009] The beneficial effect of the utility model is that: in the prior art, the rotation limit part of the connecting piece cannot rotate 360 ​​degrees due to the obstruction of the fixed limit block, and the utility model provides a swingable limit swing arm to replace the limit block to limit the connecting piece, so that the rotation of the connecting piece can exceed 360 degrees. Furthermore, because the limit swing arm can rotate, the limit abutment between the rotation limit part of the connecting piece and the limit swing arm is unstable and easy to slip and break free. The utility model provides the cooperation of the annular protrusion and the annular groove, so that the rotation limit part and the limit swing arm can be stably abutted. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of the timer connector limit structure proposed by the utility model when the timing is in the 0 minute state;

[0011] Figure 2 This is a structural schematic diagram of the timer connector limit structure proposed by the utility model when the timer is in the 60-minute timing state;

[0012] Description of labels:

[0013] 1. Movement;

[0014] 2. Connecting piece; 21. Rotation limiting part; 22. Annular protrusion;

[0015] 3. Limit swing arm; 31. Annular groove;

[0016] 4. Limit block;

[0017] 5. Schematic diagram of the connection part. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0019] Please refer to Figure 1 and Figure 2 As shown, the utility model provides a timer connecting piece limiting structure, comprising a movement 1, a connecting piece 2, a limiting swing arm 3 and two limiting blocks 4;

[0020] The connecting member 2 rotates under the drive of the movement 1; a protruding rotation-limiting portion 21 is provided on the connecting member 2; an annular protrusion 22 is provided at the end of the rotation-limiting portion 21;

[0021] One end of the limit swing arm 3 is fixed, and the other end is a free end, and the free end is limited to swing between the two limit blocks 4;

[0022] The position-limiting swing arm 3 is located within the travel of the circular motion of the rotation-limiting portion 21 ; an annular groove 31 adapted to the annular protrusion 22 is provided at the end of the position-limiting swing arm 3 .

[0023] As can be seen from the above description, the beneficial effect of the utility model is that: in the prior art, the rotation limit part of the connecting member cannot rotate 360 ​​degrees due to the obstruction of the fixed limit block, and the utility model provides a swingable limit swing arm to replace the limit block to limit the connecting member, so that the rotation of the connecting member can exceed 360 degrees. Furthermore, because the limit swing arm can rotate, the limit abutment between the rotation limit part of the connecting member and the limit swing arm is unstable and easy to slip and break free. The utility model provides the cooperation of the annular protrusion and the annular groove to make the abutment between the rotation limit part and the limit swing arm stable.

[0024] Furthermore, in the above-mentioned timer connecting piece limiting structure, the radial cross-section of the limiting portion 21 is a rectangle.

[0025] It can be seen from the above description that the radial cross section of the rotation limiting portion 21 is a rectangle, so that the rotation limiting portion 21 and the limiting swing arm 3 can abut against each other stably.

[0026] Furthermore, in the above-mentioned timer connecting piece limiting structure, the radial cross-section of the limiting swing arm 3 is a rectangle.

[0027] It can be seen from the above description that the radial cross-section of the position-limiting swing arm 3 is a rectangle, so that the rotation-limiting portion 21 and the position-limiting swing arm 3 are in abutment with each other stably.

[0028] Furthermore, in the above-mentioned timer connector limiting structure, the thickness of the rotation limiting portion 21 perpendicular to the rotation surface of the connector 2 is greater than the thickness of the limiting swing arm 3 perpendicular to the rotation surface of the connector 2 .

[0029] It can be seen from the above description that the thickness of the rotation limiting part 21 is greater than that of the position limiting swing arm 3, so that the rotation limiting part 21 and the position limiting swing arm 3 are more stably abutted against each other.

[0030] Furthermore, the above-mentioned timer connecting piece limiting structure also includes a shell, and the limiting block 4 is a cylinder fixed on the shell.

[0031] Furthermore, in the above-mentioned timer connecting member limiting structure, the connecting member 2 also includes a schematic connecting portion 5 for driving the indicator needle to rotate.

[0032] As can be seen from the above description, the schematic connecting portion 5 is provided to enable the indicator needle on the timer to rotate along with the connecting member 2 .

[0033] Furthermore, in the above-mentioned timer connector limiting structure, the cross-section of the schematic connecting portion 5 is a rectangular structure.

[0034] From the above description, it can be seen that the cross-section of the schematic connecting portion 5 is a rectangular structure. The indicator disk or indicator needle on the timer needs to rotate with the connecting member 2 under the action of the connecting member 2. The rectangular structure prevents rotation between the two and plays an anti-rotation role.

[0035] Furthermore, in the above-mentioned timer connecting member limiting structure, the connecting member 2 also includes a disk body, the disk body is a circular structure, and the rotation limiting portion 21 is arranged on the circumference of the disk body.

[0036] It can be seen from the above description that setting the disc body to a circular structure makes the rotation of the disc body more balanced.

[0037] Furthermore, in the above-mentioned timer connecting member limiting structure, the connecting member 2 is provided with an axial hole for connecting the output shaft of the movement 1.

[0038] As can be seen from the above description, the shaft hole is provided to facilitate the assembly of the movement 1 and the output shaft.

[0039] Furthermore, in the above-mentioned timer connecting piece limiting structure, the shaft hole is a flat hole.

[0040] It can be seen from the above description that the shaft hole is a flat hole, which realizes better power transmission between the movement 1 and the connecting member 2.

[0041] Embodiment 1

[0042] See also Figure 1 and Figure 2 , this embodiment provides a timer connecting member limiting structure, including a movement 1, a connecting member 2, a limiting swing arm 3 and two limiting blocks 4;

[0043] The connecting member 2 rotates under the drive of the movement 1; a protruding rotation-limiting portion 21 is provided on the connecting member 2; an annular protrusion 22 is provided at the end of the rotation-limiting portion 21;

[0044] One end of the limit swing arm 3 is fixed, and the other end is a free end, and the free end is limited to swing between the two limit blocks 4;

[0045] The position-limiting swing arm 3 is located within the travel of the circular motion of the rotation-limiting portion 21 ; an annular groove 31 adapted to the annular protrusion 22 is provided at the end of the position-limiting swing arm 3 .

[0046] The radial cross section of the rotation limiting part 21 is a rectangle. The radial cross section of the position limiting swing arm 3 is a rectangle. The thickness of the rotation limiting part 21 perpendicular to the rotation surface of the connecting member 2 is greater than the thickness of the position limiting swing arm 3 perpendicular to the rotation surface of the connecting member 2.

[0047] The connecting member 2 further comprises a disk body, which is a circular structure, and the rotation limiting portion 21 is arranged on the circumference of the disk body.

[0048] Use of the above timer connector limit structure:

[0049] When the timer uses the timing function, the connecting piece is coaxially rotated by the timing knob, and the rotation-limiting part provided on the connecting piece rotates; one end of the limit swing arm is fixed, and the other end is limited to swing between the two limit blocks; the limit swing arm is located within the travel of the circular motion of the rotation-limiting part, such as Figure 1 To count down to 0 minutes, Figure 2 In the state of timing for 60 minutes, the limit swing arm limits the rotation of the rotation limiting part, so that the timing is limited to no more than 60 minutes, and by arranging the cooperation of the annular protrusion and the annular groove, and the setting that the thickness of the rotation limiting part is greater than the limit swing arm, the rotation limiting part and the limit swing arm are stabilized against each other.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A timer connecting piece limiting structure, characterized in that: It includes a movement, a connecting piece, a limit swing arm and two limit blocks; The connecting member rotates under the drive of the movement; a protruding rotation-limiting portion is provided on the connecting member; and an annular protrusion is provided at the end of the rotation-limiting portion; One end of the limit swing arm is fixed, and the other end is a free end, and the free end is limited to swing between the two limit blocks; The position-limiting swing arm is located within the travel of the circular motion of the rotation-limiting portion; and an annular groove matching the annular protrusion is provided at the end of the position-limiting swing arm.

2. The timer connecting piece limiting structure according to claim 1, characterized in that: The radial cross section of the rotation limiting portion is rectangular.

3. The timer connecting piece limiting structure according to claim 2, characterized in that: The radial cross section of the position-limiting swing arm is a rectangle.

4. The timer connecting piece limiting structure according to claim 3, characterized in that: The thickness of the rotation limiting portion perpendicular to the rotation surface of the connecting member is greater than the thickness of the limiting swing arm perpendicular to the rotation surface of the connecting member.

5. The timer connecting piece limiting structure according to claim 1, characterized in that: It also includes a shell, and the limit block is a cylinder fixed on the shell.

6. The timer connecting piece limiting structure according to claim 1, characterized in that: The connecting member also includes a schematic connecting portion for driving the indicating needle to rotate.

7. The timer connecting piece limiting structure according to claim 6, characterized in that: The cross section of the schematic connecting portion is a rectangular structure.

8. The timer connecting piece limiting structure according to claim 1, characterized in that: The connecting member further comprises a disc body, which is a circular structure, and the rotation limiting portion is arranged on the circumference of the disc body.

9. The timer connecting piece limiting structure according to claim 1, characterized in that: The connecting piece is provided with an axial hole for connecting the output shaft of the movement.

10. The timer connecting piece limiting structure according to claim 9, characterized in that: The axial hole is a flat hole.

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