Spring arm fatigue test tool

Abstract

The utility model is applicable to the technical field of medical equipment, and provides a spring arm fatigue test tool, which comprises a base and a top plate, the base and the top plate are connected through a first support and a second support which are oppositely arranged, and at least one spring arm connecting seat is arranged on one surface, facing the base, of the top plate; the swing part is arranged between the first support and the second support and comprises two swing arms and a beam frame, the two swing arms are hinged to the first support and the second support respectively, the beam frame is connected with the two swing arms, at least one fixing hole is formed in the beam frame, and the number and the position of the fixing holes correspond to the number and the position of the spring arm connecting seats; and the driving piece is connected with the at least one swing arm. A plurality of spring arms can be tested at a time, and the testing efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a fatigue test tooling for a spring arm. Background Art

[0002] A spring arm is a common suspension device in the medical industry, usually used to suspend various devices such as lighting lamps, imaging devices, catheters, etc.

[0003] In order to ensure the safety of the spring arm during use, during the production process of the spring arm, it is necessary to conduct a life test on the spring arm to detect the fatigue limit of the spring arm during use, so as to guide the use of the spring arm.

[0004] The traditional fatigue test tooling for a spring arm can only test one spring arm at a time, with low test efficiency, complex structure, and inconvenience for production and operation. Summary of the Utility Model

[0005] The utility model provides a fatigue test tooling for a spring arm, aiming to solve the problem of low test efficiency of the traditional fatigue test tooling for a spring arm.

[0006] The utility model is realized as follows: a fatigue test tooling for a spring arm includes: a base and a top plate, the base and the top plate are connected by a first bracket and a second bracket arranged oppositely, and at least one spring arm connecting seat is arranged on the surface of the top plate facing the base;

[0007] A swinging member arranged between the first bracket and the second bracket, the swinging member includes two swing arms respectively hinged to the first bracket and the second bracket, and a beam frame connecting the two swing arms, at least one fixing hole is arranged on the beam frame, and the number and position of the fixing holes correspond to the number and position of the spring arm connecting seats;

[0008] A driving member, the driving member is connected to at least one of the swing arms.

[0009] In some embodiments, the driving member includes a rotating motor and at least one set of transmission components, the transmission components include a driving wheel, a driven wheel and a belt, the driven wheel is connected to the swing arm, and the driving wheel is connected to the output end of the rotating motor.

[0010] In some embodiments, two sets of the transmission components are arranged.

[0011] In some embodiments, the two driving wheels are connected by a synchronizing rod and connected to the output end of the rotating motor through the synchronizing rod.

[0012] In some embodiments, the motor is arranged on the base.

[0013] In some embodiments, a plurality of spring arm connection seats are provided, and the plurality of spring arm connection seats are arranged side by side.

[0014] In some embodiments, a plurality of feet are provided on the base.

[0015] In some embodiments, suction cups are provided on the feet.

[0016] In some embodiments, a reinforcing rib is provided between the two swing arms.

[0017] In some embodiments, the two swing arms are respectively connected to the first bracket and the second bracket through spacer blocks.

[0018] The beneficial effects achieved by the present utility model are as follows. Since a bottom plate, a first bracket, a second bracket, and a top plate are provided as a support frame, and at least one spring arm connection seat for fixing the base of the spring arm is provided on the top plate. The provided swing member includes two swing arms respectively hinged to the first bracket and the second bracket and a beam frame connecting the two swing arms, and fixing holes corresponding to the two-section seat are provided on the beam frame. The base of the spring arm is fixed on the spring arm connection seat, and the rocker arm of the spring arm is arranged in the fixing hole, and the rocker arm is driven by the swing member to rotate relative to the base to test the bending life of the spring arm. The number of connection seats and fixing holes can be set according to actual needs, and multiple spring arms can be tested at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a spring arm fatigue test tooling provided by the present utility model;

[0020] Figure 2 is a schematic exploded structural diagram of a spring arm fatigue test tooling provided by the present utility model;

[0021] Figure 3 is a schematic structural diagram of a spring arm.

[0022] Description of the reference numerals:

[0023] 100. Spring arm fatigue test tooling; 110. Base; 120. Top plate; 130. First bracket; 140. Second bracket; 150. Swing member; 151. Swing arm; 152. Beam frame; 153. Reinforcing rib; 154. Spacer block; 160. Spring arm connection seat; 170. Driving member; 171. Rotary motor; 172. Transmission assembly; 1721. Driving wheel; 1722. Driven wheel; 1723. Belt; 180. Foot; 190. Synchronous rod;

[0024] 200. Spring arm; 210. Base; 220. Rocker arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0030] In the present utility model, a bottom plate, a first bracket, a second bracket, and a top plate are provided as a support frame. At least one spring arm connection seat for fixing the base of the spring arm is provided on the top plate. The provided swing member includes two swing arms respectively hinged to the first bracket and the second bracket and a beam frame connecting the two swing arms. Fixing holes corresponding to the two-section seat are provided on the beam frame. The base of the spring arm is fixed on the spring arm connection seat, and the swing arm of the spring arm is arranged in the fixing hole. The swing arm is driven by the swing member to rotate relative to the base to test the bending life of the spring arm. The number of connection seats and fixing holes can be set according to actual needs, and multiple spring arms can be tested at one time.

[0031] Embodiment 1

[0032] See Figure 1 , this embodiment provides a spring arm fatigue test tooling 100, which is characterized by comprising a base 110 and a top plate 120. The base 110 and the top plate 120 are connected by relatively arranged first brackets 130 and second brackets 140. At least one spring arm 200 connection seat 160 is provided on the surface of the top plate 120 facing the base 110;

[0033] A swing member 150 is arranged between the first bracket 130 and the second bracket 140. The swing member 150 includes two swing arms 151 respectively hinged to the first bracket 130 and the second bracket 140, and a beam frame 152 connecting the two swing arms 151. At least one fixing hole is provided on the beam frame 152. The number and position of the fixing holes correspond to the number and position of the spring arm 200 connection seats 160;

[0034] A driving member 170, and the driving member 170 is connected to at least one swing arm 151.

[0035] The bottom plate and the top plate 120 are arranged in parallel. The first bracket 130 and the second bracket 140 are oppositely arranged between the bottom plate and the top plate 120. A quadrilateral support frame is jointly built by the bottom plate, the first bracket 130, the second bracket 140 and the top plate 120. At least one spring arm 200 connecting seat 160 is arranged on the surface of the top plate 120 facing the bottom plate. The spring arm 200 includes a base 210 and a rocker arm 220 hinged to the base 210. The spring arm 200 connecting seat 160 is used for fixedly connecting with the base 210 of the spring arm 200.

[0036] The swing member 150 is arranged between the first bracket 130 and the second bracket 140. The swing member 150 includes two swing arms 151 and a beam frame 152 connecting the two swing arms 151. Specifically, the two swing arms 151 are respectively hinged to the first bracket 130 and the second bracket 140, and the rotation centers of the two hinge points are collinear. The beam frame 152 is arranged between the two swing arms 151, and the position where the beam frame 152 is arranged cannot be collinear with the rotation centers of the two swing arms 151. The beam frame 152 can be driven by the swing arms 151 to make a circular motion around the hinge points of the swing arms 151. At least one fixing hole is arranged on the beam frame 152. The number and position of the fixing holes correspond to the number and position of the connecting seats. The fixing holes are used for fixing the rocker arm 220 of the spring arm 200 to drive the rocker arm 220 to rotate relative to the base 210.

[0037] The driving member 170 is used for driving the swing arm 151 to rotate relative to the bracket to which it is connected. Specifically, one driving member 170 can be arranged to drive any one of the swing arms 151 to rotate. Under the action of the beam frame 152, the other swing arm 151 follows and moves synchronously; one driving member 170 can also be arranged and connected to the two swing arms 151 respectively through a synchronous structure to drive the two swing arms 151 to move synchronously at the same time; two driving members 170 can also be arranged, and the two driving members 170 are respectively connected to the two swing arms 151, and the driving frequencies and the rotation directions of the driving swing arms 151 of the two driving members 170 are the same.

[0038] In this embodiment, a bottom plate, a first bracket 130, a second bracket 140, and a top plate 120 are provided as a support frame. On the top plate 120, at least one spring arm 200 connecting seat 160 for fixing the base 210 of the spring arm 200 is provided. The provided swing member 150 includes two swing arms 151 respectively hinged to the first bracket 130 and the second bracket 140 and a beam frame 152 connecting the two swing arms 151. Fixed holes corresponding to the two-section seat are provided on the beam frame 152. The base 210 of the spring arm 200 is fixed on the spring arm 200 connecting seat 160, and the rocker arm 220 of the spring arm 200 is arranged in the fixed hole. The swing member 150 drives the rocker arm 220 to rotate relative to the base 210 to test the bending life of the spring arm 200. The number of connecting seats and fixed holes can be set according to actual requirements, and multiple spring arms 200 can be tested at one time.

[0039] Embodiment Two

[0040] On the basis of Embodiment One, the driving member 170 includes a rotary motor 171 and at least one set of transmission components 172. The transmission components 172 include a driving wheel 1721, a driven wheel 1722, and a belt 1723. The driven wheel 1722 is connected to the swing arm 151, and the driving wheel 1721 is connected to the output end of the rotary motor 171.

[0041] The rotary motor 171 provides a rotational driving force. The transmission components 172 are used to transmit the rotational power provided by the rotary motor 171 to the swing arm 151. There is no need to directly connect the rotary motor 171 to the rocker arm 220, and the installation position of the motor is more flexible, which is beneficial to reducing the overall volume of the spring arm fatigue test tooling 100.

[0042] The transmission components 172 include a driving wheel 1721, a driven wheel 1722, and a belt 1723. The belt 1723 is sleeved on the driving wheel 1721 and the driven wheel 1722. When the driving wheel 1721 rotates, it drives the belt 1723 to rotate, and then the belt 1723 drives the driven wheel 1722 to rotate synchronously. The driving wheel 1721 is connected to the output end of the rotary motor 171, and the motor drives the driving wheel 1721 to rotate. The driven wheel 1722 is connected to the swing arm 151, and the rotation center of the driven wheel 1722 is collinear with the rotation center of the rocker arm 220. The driven wheel 1722 drives the swing arm 151 to rotate around the hinge point.

[0043] Embodiment Three

[0044] On the basis of Embodiment Two, two sets of transmission components 172 are provided.

[0045] Two sets of transmission components 172 are provided. Two driving wheels 1721 are driven to rotate by a rotating motor 171, and two driven wheels 1722 are respectively connected to two swing arms 151. The two sets of transmission components 172 have the same specifications to ensure the same transmission efficiency of the two sets of transmission components 172, so that the two swing arms 151 swing synchronously.

[0046] In one embodiment, the two driving wheels 1721 are connected by a synchronizing rod 190 and are connected to the output end of the rotating motor 171 through the synchronizing rod 190. The synchronizing rod 190 is fixedly connected to the rotation centers of the two driving wheels 1721 respectively. The synchronizing rod 190 is driven to rotate by a rotating motor, and the synchronizing rod 190 then drives the two driving wheels 1721 to rotate synchronously.

[0047] Embodiment 4

[0048] On the basis of Embodiment 2, the motor is arranged on the base.

[0049] The base provides positioning for the motor, which is convenient for the overall movement of the spring arm fatigue test tooling 100.

[0050] Embodiment 5

[0051] On the basis of Embodiment 1, a plurality of spring arm 200 connectors 160 are provided, and the plurality of spring arm 200 connectors 160 are arranged side by side.

[0052] The plurality of spring arm 200 connectors 160 are arranged side by side with a reasonable layout. More spring arm 200 connectors 160 can be arranged in a certain area, and the space utilization rate is high.

[0053] Embodiment 6

[0054] On the basis of Embodiment 1, a plurality of feet 180 are arranged on the base 110.

[0055] The feet 180 are used to support the base 110. The base 110 makes point contact with the working surface through the feet 180. Compared with the base 110 making surface contact with the working surface directly, the placement is more stable, and the base 110 does not need to directly contact the working surface, and the machining accuracy is small. Specifically, at least three feet 180 are provided to facilitate the formation of a stable support.

[0056] In one embodiment, suction cups are arranged on the feet 180. The suction cups can make the bracket and the working surface more stably connected and avoid swinging during the test.

[0057] Embodiment 7

[0058] On the basis of Embodiment 1, a reinforcing rib 153 is arranged between the two swing arms 151.

[0059] The reinforcing rib is used to fix the relative positions between the two swing arms 151, making the connection between the two swing arms 151 more stable.

[0060] Embodiment VIII

[0061] On the basis of Embodiment I, the two swing arms 151 are respectively connected to the first bracket 130 and the second bracket 140 through spacer blocks 154.

[0062] The spacer blocks create a certain distance between the swing arms and the brackets, preventing mutual friction between the swing arms 151 and the brackets and causing damage to the parts.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spring arm fatigue test tooling, characterized in that, It includes a base and a top plate. The base and the top plate are connected by a relatively arranged first bracket and a second bracket. At least one spring arm connecting seat is arranged on the surface of the top plate facing the base. A swing member arranged between the first bracket and the second bracket. The swing member includes two swing arms respectively hinged to the first bracket and the second bracket, and a beam frame connecting the two swing arms. At least one fixing hole is arranged on the beam frame, and the number and position of the fixing holes correspond to the number and position of the spring arm connecting seats. A driving member, which is connected to at least one of the swing arms.

2. The spring arm fatigue test tooling according to claim 1, characterized in that, The driving member includes a rotary motor and at least one set of transmission components. The transmission components include a driving wheel, a driven wheel and a belt. The driven wheel is connected to the swing arm, and the driving wheel is connected to the output end of the rotary motor.

3. The spring arm fatigue test tooling according to claim 2, characterized in that Two sets of the transmission components are arranged.

4. The spring arm fatigue test tooling according to claim 3, wherein, The two driving wheels are connected by a synchronizing rod and are connected to the output end of the rotary motor through the synchronizing rod.

5. The spring arm fatigue test tooling according to claim 2, wherein The motor is arranged on the base.

6. The spring arm fatigue test tooling according to claim 1, characterized in that, A plurality of the spring arm connecting seats are arranged, and the plurality of spring arm connecting seats are arranged side by side.

7. The spring arm fatigue test tooling according to claim 1, wherein A plurality of feet are arranged on the base.

8. The spring arm fatigue test tooling according to claim 7, characterized in that, Suction cups are arranged on the feet.

9. The spring arm fatigue test tooling according to claim 1, characterized in that, Reinforcing ribs are arranged between the two swing arms.

10. The spring arm fatigue test tooling according to claim 1, wherein, The two swing arms are respectively connected to the first bracket and the second bracket through spacer blocks.

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