CN210255847U - Clamp for crutch deflection bending test - Google Patents
Clamp for crutch deflection bending test Download PDFInfo
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- CN210255847U CN210255847U CN201921048348.2U CN201921048348U CN210255847U CN 210255847 U CN210255847 U CN 210255847U CN 201921048348 U CN201921048348 U CN 201921048348U CN 210255847 U CN210255847 U CN 210255847U
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- crutch
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Abstract
The utility model discloses a clamp for crutch deflection bending test, in particular to the field of quality inspection, which comprises a movable seat and a fixed component for clamping the crutch pillar part; the fixing component comprises a first fixing device and a second fixing device which have the same structure, the first fixing device is arranged at the joint of the crutch post and the crutch grab handle, and the second fixing device is arranged at the free end of the crutch post; the first fixing device comprises a sliding seat, a fixing block, a clamping fixing piece and a driving piece for driving the clamping fixing piece to clamp the crutch strut, and the fixing block is fixedly arranged at the upper end of the sliding seat; the clamping fixing piece comprises a first clamping arm and a second clamping arm which are connected with the fixing block in a sliding mode, and the crutch strut is clamped between the first clamping arm and the second clamping arm. The utility model provides an anchor clamps amount of deflection measuring accuracy can reach 0.1mm, uses mechanized testing process more accurate, high-efficient. Meanwhile, in the test process, the moving cannot occur, and the clamping fixing degree is higher.
Description
Technical Field
The utility model relates to a quality testing field specifically is anchor clamps of walking stick amount of deflection bending test usefulness.
Background
In the present day, japanese standard CPSA 0073, in the method for confirming the reference and reference for the identification of crutches, it is clearly required that the elderly who export input to japan use the crutches must comply with the regulations of the standard test. Wherein the standard comprises a test of the bending deflection of the crutch. The standard test requirements are: the testing distance of the crutch strut is selected to be 600mm (less than 600mm, and 500mm can be selected), two points of the strut are fixed, the middle point is used as a deflection testing point, 196N force is applied, the testing direction is ensured to be right angle to the strut, the time is 1 minute, and the bending deflection value of the test sample is recorded. If the deflection of the crutch is less than 10mm, and the crutch is not damaged or falls off and does not deform to influence use, the crutch is qualified.
However, currently, most of the fixing of the crutch is performed by adopting a manual handheld thrustor, and the crutch strut cannot be guaranteed to be in a horizontal state in a test and cannot be better clamped and fixed. The deflection test precision can not meet the requirement of the Japanese CPSA 0073 standard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a method for guiding variable lane, which overcomes the defects.
In order to achieve the above object, the utility model provides a following technical scheme:
the clamp for the bending test of the crutch deflection comprises a movable seat and a fixing component for clamping a crutch strut part; the fixing component comprises a first fixing device and a second fixing device which have the same structure, the first fixing device is arranged at the joint of the crutch post and the crutch grab handle, and the second fixing device is arranged at the free end of the crutch post; the first fixing device comprises a sliding seat, a fixing block, a clamping fixing piece and a driving piece for driving the clamping fixing piece to clamp the crutch strut, and the fixing block is fixedly arranged at the upper end of the sliding seat; the clamping fixing piece comprises a first clamping arm and a second clamping arm which are connected with the fixing block in a sliding mode, and the crutch strut is clamped between the first clamping arm and the second clamping arm.
Preferably, the driving piece comprises a first connecting rod fixed to one end of the first clamping arm back fixed block, a second connecting rod fixed to one end of the second clamping arm back fixed block, and a driving rod penetrating through the fixed block, the first connecting rod is provided with a containing groove for embedding the second connecting rod, the second connecting rod is provided with a sliding through groove, a groove wall of the sliding through groove is provided with a first tooth part, and correspondingly, the side wall of the driving rod is provided with a second tooth part meshed with the first tooth part to rotate.
Preferably, the end of the driving rod facing the first clamping arm is provided with a fixing head for preventing the driving rod from falling off.
Preferably, one end of the fixed block, which faces away from the sliding seat, is provided with a sliding groove, and the first clamping arm and the second clamping arm are both provided with sliding blocks which are matched with the sliding grooves to slide.
Preferably, one end of the driving rod, which faces away from the fixed head, is provided with a rotating handle part.
Preferably, the clamping fixing piece further comprises a limiting arm, the limiting arm is provided with a through hole which is matched with the driving rod to penetrate through, and the limiting arm is arranged at one end, back to the first clamping arm, of the fixing block; the side wall of the driving rod is provided with a threaded section, correspondingly, one end of the first connecting rod, which faces away from the first clamping arm, is provided with an arc-shaped groove, the wall of the arc-shaped groove is provided with threads matched with the threaded section, the threaded section is arranged at one end close to the arc-shaped groove, and the second tooth part is arranged at one end far away from the arc-shaped groove; after the threaded section is screwed into the arc-shaped groove, the first tooth part and the second tooth part are in meshing transmission when the rotating handle part is tightly abutted against the limiting arm.
Preferably, the first fixing device further comprises a guide roller and a connecting rod which are convenient for horizontally moving the crutch post, one end of the connecting rod is fixed with the fixing block, and the other end of the connecting rod is rotatably connected with the guide roller through a bearing.
Preferably, the test device further comprises an auxiliary positioning device for assisting in distinguishing the test point, the auxiliary positioning device comprises a supporting connecting rod and a measuring scale horizontally arranged on the movable seat, one end of the supporting connecting rod is fixed with the movable seat, and the other end of the supporting connecting rod is fixed with the measuring scale.
Preferably, the measuring tape is provided with a groove for conveniently observing the crutch post.
Preferably, the walking stick further comprises a tail positioning seat arranged on the movable seat in a sliding mode, a jack matched with the diameter of the crutch strut is arranged on the tail positioning seat, and a crutch strut tail end indicating groove is formed in the side end of the tail positioning seat.
The utility model has the advantages that:
adopt the utility model provides an anchor clamps compare with the manual handheld thrustor test of tradition, and this anchor clamps amount of deflection measuring accuracy can reach 0.1mm, uses mechanized testing process more accurate, high-efficient. Meanwhile, in the test process, the moving cannot occur, and the clamping fixing degree is higher.
Drawings
FIG. 1 is a schematic structural diagram of a fixture for bending deflection of a crutch according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a fixture for bending deflection of a crutch according to the present embodiment;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is a schematic structural diagram of a fixture for use in bending test of crutch deflection in this embodiment;
fig. 6 is an enlarged view of a portion C in fig. 5.
In the figure: 1. the movable seat, 21, the sliding seat, 22, the fixed block, 23, first arm lock, 24, spacing arm, 240, the sliding tray, 25, the connecting rod, 26, the deflector roll, 27, the actuating lever, 270, the second tooth portion, 271, the turning handle, 28, the fixed head, 291, the first connecting rod, 292, the second connecting rod, 293, the first tooth portion, 31, the support connecting rod, 32, the measuring tape, 33, the recess, 41, the afterbody positioning seat, 42, the jack, 44, the crutch pillar tail end indicating slot.
Detailed Description
The embodiment provides a method for guiding a variable lane, which comprises the following steps:
as shown in fig. 1 to 6, the clamp for the bending test of the bending deflection of the crutch comprises a movable seat 1 and a fixing component for clamping the supporting part of the crutch; the fixing component comprises a first fixing device and a second fixing device which have the same structure, the first fixing device is arranged at the joint of the crutch post and the crutch grab handle, and the second fixing device is arranged at the free end of the crutch post; the first fixing device comprises a sliding seat 21, a fixing block 22, a clamping fixing piece and a driving piece for driving the clamping fixing piece to clamp the crutch strut, and the fixing block 22 is fixedly arranged at the upper end of the sliding seat 21; the clamping fixing piece comprises a first clamping arm 23 and a second clamping arm which are connected with the fixing block 22 in a sliding mode, and the crutch strut is clamped between the first clamping arm 23 and the second clamping arm.
In this embodiment, the first fixing device and the second fixing device are slidably disposed on the movable base 1, the first fixing device is disposed at the joint of the crutch column and the crutch grip, and the second fixing device is disposed at the tail end of the crutch column. When the crutch is fixedly installed, the crutch support can be placed between the first clamping arm 23 and the second clamping arm, and meanwhile, the gap between the first clamping arm 23 and the second clamping arm is driven to be smaller and smaller by the driving piece until the crutch support is fixedly clamped.
As shown in fig. 2 and 6, the driving member includes a first connecting rod 291 fixed to an end of the first clamping arm 23 facing away from the fixed block 22, a second connecting rod 292 fixed to an end of the second clamping arm facing away from the fixed block 22, and a driving rod 27 penetrating through the fixed block 22, the first connecting rod 291 has a receiving slot into which the second connecting rod 292 is inserted, the second connecting rod 292 has a sliding through slot, a slot wall of the sliding through slot has a first tooth 293, and correspondingly, a sidewall of the driving rod 27 has a second tooth 270 engaged with the first tooth 293 for rotation.
When the first clamping arm 23 and the second clamping arm are required to be driven to clamp the crutch support, the driving rod 27 is rotated, so that the first tooth portion 293 arranged on the driving rod 27 drives the second tooth portion 270 to rotate, the second connecting rod 292 is embedded into the accommodating groove in the first connecting rod 291, and the distance between the first clamping arm 23 and the second clamping arm can be adapted to the crutch support.
As shown in fig. 2, the end of the driving rod 27 facing the first clamp arm 23 is provided with a fixing head 28 for preventing the falling off.
As shown in fig. 2, a sliding groove 240 is formed at an end of the fixed block 22 facing away from the sliding seat 21, and the first clamping arm 23 and the second clamping arm are respectively provided with a sliding block adapted to slide in the sliding groove 240.
As shown in fig. 4, the end of drive rod 27 facing away from fixed head 28 is provided with a rotating grip 271.
As shown in fig. 2 and 4, the clamping and fixing member further includes a limiting arm 24, the limiting arm 24 is provided with a through hole for the driving rod 27 to pass through, and the limiting arm 24 is disposed at an end of the fixing block 22 facing away from the first clamping arm 23; a threaded section is arranged on the side wall of the driving rod 27, correspondingly, an arc-shaped groove is arranged at one end of the first connecting rod 291, which faces away from the first clamping arm 23, a thread matched with the threaded section is arranged on the wall of the arc-shaped groove, the threaded section is arranged at one end close to the arc-shaped groove, and the second tooth part 270 is arranged at one end far away from the arc-shaped groove; after the thread section is screwed into the arc-shaped groove, the first tooth portion 293 and the second tooth portion 270 are engaged for transmission when the rotating handle 271 is tightly abutted against the limiting arm 24.
The spacing arm 24 is disposed at the other end of the fixing block 22, and is equivalent to three-point fixing of the crutch post. The threaded section can be threaded into the arcuate slot when the technician turns the drive rod 27. When the rotation shank 271 engages with the stopper arm 24, the screw cannot be further screwed, and the first tooth 293 and the second tooth 270 provided on the side wall of the driving rod 27 rotate in mesh. Since drive rod 27 is fixed, when drive rod 27 rotates, second link 292 will be embedded in first link 291 until the crutch post is fixed.
As shown in fig. 2, the first fixing device further includes a guide roller 26 and a connecting rod 25 for facilitating horizontal movement of the crutch post, one end of the connecting rod 25 is fixed to the fixing block 22, and the other end is rotatably connected to the guide roller 26 through a bearing. During the fixing process, the crutch support can contact with the guide roller 26, and the crutch support can be prevented from being damaged or being deformed by extrusion during the moving process.
As shown in fig. 4, the present embodiment further includes an auxiliary positioning device for assisting in identifying the test point, the auxiliary positioning device includes a supporting connecting rod 31 and a measuring scale 32 horizontally disposed on the movable base 1, one end of the supporting connecting rod 31 is fixed to the movable base 1, and the other end is fixed to the measuring scale 32. Because the test site is specified in advance, technicians can position the test site according to the scales on the measuring scale 32, so that the measured bending value of the crutch is more accurate.
As shown in fig. 3, the measuring tape 32 is provided with a groove 33 to facilitate viewing of the crutch post. The position of the groove 33 represents the position of the crutch post, which is more convenient for the technician to locate.
As shown in fig. 5, the present embodiment further includes a tail positioning seat 41 slidably disposed on the movable seat 1, the tail positioning seat 41 is provided with an insertion hole 42 adapted to the diameter of the crutch post, and a side end of the tail positioning seat 41 is provided with a crutch post tail end indication groove 44.
Claims (10)
1. The clamp for the bending test of the crutch deflection is characterized by comprising a movable seat (1) and a fixing component for clamping a crutch strut part;
the fixing component comprises a first fixing device and a second fixing device which have the same structure, the first fixing device is arranged at the joint of the crutch post and the crutch grab handle, and the second fixing device is arranged at the free end of the crutch post;
the first fixing device comprises a sliding seat (21), a fixing block (22), a clamping fixing piece and a driving piece for driving the clamping fixing piece to clamp the crutch strut, and the fixing block (22) is fixedly arranged at the upper end of the sliding seat (21);
the clamping fixing piece comprises a first clamping arm (23) and a second clamping arm which are connected with the fixing block (22) in a sliding mode, and the crutch strut is clamped between the first clamping arm (23) and the second clamping arm.
2. The clamp for bending test of crutch deflection according to claim 1, wherein the driving member comprises a first connecting rod (291) fixed to one end of the first clamping arm (23) facing away from the fixed block (22), a second connecting rod (292) fixed to one end of the second clamping arm facing away from the fixed block (22), and a driving rod (27) passing through the fixed block (22), the first connecting rod (291) is provided with a receiving slot for the second connecting rod (292) to be embedded in, the second connecting rod (292) is provided with a sliding through slot, the slot wall of the sliding through slot is provided with a first tooth portion (293), and correspondingly, the side wall of the driving rod (27) is provided with a second tooth portion (270) rotating in mesh with the first tooth portion (293).
3. The clamp for crutch deflection bending test as set forth in claim 2, wherein the end of the driving rod (27) facing the first clamping arm (23) is provided with a fixing head (28) for preventing falling out.
4. The clamp for bending test of crutch deflection according to claim 2, wherein the end of the fixed block (22) facing away from the sliding seat (21) is provided with a sliding slot (240), and the first clamping arm (23) and the second clamping arm are both provided with a sliding block adapted to the sliding slot (240) for sliding.
5. The clamp for crutch deflection testing as defined in claim 3, wherein the end of the driving rod (27) facing away from the fixed head (28) is provided with a rotary handle (271).
6. The clamp for crutch deflection bending test according to claim 5, wherein the clamping fixture further comprises a limiting arm (24), the limiting arm (24) is provided with a through hole for the driving rod (27) to pass through, and the limiting arm (24) is arranged at one end of the fixing block (22) facing away from the first clamping arm (23);
a threaded section is arranged on the side wall of the driving rod (27), correspondingly, an arc-shaped groove is formed in one end, back to the first clamping arm (23), of the first connecting rod (291), threads matched with the threaded section are arranged on the wall of the arc-shaped groove, the threaded section is arranged at one end close to the arc-shaped groove, and the second tooth part (270) is arranged at one end far away from the arc-shaped groove;
after the thread section is screwed into the arc-shaped groove, the first tooth part (293) and the second tooth part (270) are in meshing transmission when the rotating handle part (271) is tightly propped against the limiting arm (24).
7. The clamp for crutch deflection bending test as defined in claim 1, wherein the first fixing device further comprises a guide roller (26) for facilitating horizontal movement of the crutch post and a connecting rod (25), one end of the connecting rod (25) is fixed to the fixing block (22), and the other end is rotatably connected to the guide roller (26) through a bearing.
8. The clamp for crutch deflection bending test according to claim 1, further comprising an auxiliary positioning device for assisting in identifying the test point, wherein the auxiliary positioning device comprises a support connecting rod (31) and a measuring scale (32) horizontally arranged on the movable base (1), one end of the support connecting rod (31) is fixed with the movable base (1), and the other end is fixed with the measuring scale (32).
9. The clamp for crutch deflection testing of claim 8 wherein the measuring tape (32) is provided with a groove (33) for easy viewing of the crutch brace.
10. The clamp for crutch deflection bending test according to claim 1, further comprising a tail positioning seat (41) slidably disposed on the movable seat (1), wherein the tail positioning seat (41) is provided with a plug hole (42) adapted to the diameter of the crutch brace, and a crutch brace tail end indicating groove (44) is disposed at a side end of the tail positioning seat (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921048348.2U CN210255847U (en) | 2019-07-05 | 2019-07-05 | Clamp for crutch deflection bending test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921048348.2U CN210255847U (en) | 2019-07-05 | 2019-07-05 | Clamp for crutch deflection bending test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210255847U true CN210255847U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921048348.2U Active CN210255847U (en) | 2019-07-05 | 2019-07-05 | Clamp for crutch deflection bending test |
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| Country | Link |
|---|---|
| CN (1) | CN210255847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238775A (en) * | 2019-07-05 | 2019-09-17 | 宁波检验检疫科学技术研究院 | A kind of fixture of crutch amount of deflection crooked test |
-
2019
- 2019-07-05 CN CN201921048348.2U patent/CN210255847U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238775A (en) * | 2019-07-05 | 2019-09-17 | 宁波检验检疫科学技术研究院 | A kind of fixture of crutch amount of deflection crooked test |
| CN110238775B (en) * | 2019-07-05 | 2024-04-19 | 宁波检验检疫科学技术研究院 | Clamp for deflection bending test of crutch |
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