Silent spring display equipment

Abstract

The utility model discloses mute spring display equipment, belongs to the technical field of machinery, and aims to overcome the defect that the conventional spring display equipment is easy to generate abnormal sound. The display equipment comprises a frame body, a cam and a warping plate, the cam can be horizontally and rotatably installed on the frame body, the warping plate is installed on the frame body in a swinging mode, the top face of the cam continuously forms a fluctuating face along the rotation circumference, a guide hole is formed in the frame body, an ejector rod penetrates through the guide hole, the upper end of the ejector rod abuts against the inner end of the warping plate, and the lower end of the ejector rod abuts against the fluctuating face. The rocker and the cam which are in direct contact are replaced by the ejector rod which is in indirect transmission, so that direct abrasion between parts is effectively reduced. Under the support of the inner wall of the guide hole, the transverse acting force of the cam on the ejector rod does not cause obvious deformation of the ejector rod, so that the noise in the transmission process can be obviously reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a silent spring display device. Background Art

[0002] The transmission components of existing spring display devices, such as the swing arm assembly and cam assembly, often experience significant wear after prolonged, continuous motion. This wear stems not only from the constant contact and relative motion between the components, but also from inherent design flaws. For example, the swing arm assembly typically directly contacts the cam assembly, which is often designed with a curved surface to drive the swing arm back and forth during rotation. However, this design forces the swing arm to withstand not only vertical forces but also variable left-right forces when pushed by the cam.

[0003] The arm assembly, exposed to these complex and variable forces for extended periods, is susceptible to fatigue, leading to increased wear at the pivot and other contact points. As wear accumulates, the gap between the arm assembly and the cam assembly gradually increases, affecting the display's transmission accuracy and stability while also generating louder noise during transmission. This noise not only diminishes the display's appeal but can also disrupt the surrounding environment, negatively impacting customers' shopping experience. Summary of the Invention

[0004] The utility model aims to solve the problems existing in the prior art and proposes a silent spring display device, aiming to overcome the defect that the prior spring display device is prone to generating abnormal noise.

[0005] The utility model is achieved in this way:

[0006] A silent spring display device includes a frame, a cam and a seesaw, wherein the cam can be mounted on the frame so as to rotate horizontally, and the seesaw can be mounted on the frame so as to swing. The top surface of the cam continuously forms an undulating surface along the rotation circle. The device is characterized in that a guide hole is provided on the frame, and a push rod is passed through the guide hole. The upper end of the push rod abuts against the inner end of the seesaw, and the lower end of the push rod abuts against the undulating surface.

[0007] As the cam rotates, its undulating surface pushes the ejector rod up and down, transmitting the driving force to the seesaw through the ejector rod, causing it to swing. By replacing the direct contact between the seesaw and cam with an indirect drive mechanism, direct wear between components is effectively reduced. Furthermore, because the ejector rod fits snugly within the guide hole and its movement is relatively smooth, supported by the inner wall of the guide hole, the lateral force exerted by the cam on the ejector rod does not significantly deform it, significantly reducing noise during transmission.

[0008] Preferably, the push rod includes a rod body with balls mounted on the upper and / or lower ends of the rod body. The introduction of balls takes advantage of the principle that rolling friction is much smaller than sliding friction. With the balls mounted on the push rod, the contact between the push rod and the rocker and cam is reduced to rolling friction, which significantly reduces the coefficient of friction, frictional losses, and noise.

[0009] Preferably, the frame includes a base top plate, a cylinder seat is fixed on the base top plate, a guide seat is fixed in the cylinder seat, and the guide hole is located on the guide seat. The cylinder seat is fixed on the base top plate to accommodate and fix the guide seat. A guide hole is provided in the guide seat to guide the up and down movement of the ejector rod. This design ensures that the ejector rod can move along a predetermined trajectory during the transmission process, thereby improving the accuracy and stability of the transmission. The local structure of the frame is decomposed into modules such as the base top plate, the cylinder seat and the guide seat to facilitate the assembly, disassembly and maintenance of the equipment. This modular design not only improves production efficiency, but also reduces maintenance costs.

[0010] Preferably, the frame includes an annular base fixed to the guide base, the annular base being provided with multiple sets of hinged seats, each set of hinged seats being hingedly connected to a seesaw. The annular base is fixed to the guide base, and its design allows for multiple sets of hinged seats to be arranged around the annular base. This design enables the device to support the installation of multiple seesaws, thereby increasing the display space and enhancing the device's display capabilities. Multiple hinged seats located on the same annular base allow for large-area contact between the annular base and the guide base, improving the stability of the hinged base.

[0011] Preferably, the surface where the inner end of the seesaw contacts the push rod is flat. Designing the inner end of the seesaw to be flat maximizes the contact area between it and the push rod. This design prevents the upper end of the push rod from being positioned at a single position on the seesaw, reducing lateral forces between the push rod and the seesaw and lowering the risk of deformation.

[0012] Preferably, the frame is provided with a compression assembly comprising a vertical guide tube and a guide rod movable up and down relative thereto, the guide rod being light-transmissive and internally mounted with a lamp. The display spring is sleeved on the guide rod, and a lamp, such as an LED lamp, is internally mounted on the guide rod to illuminate the display spring and enhance the display effect.

[0013] Preferably, the guide rod is made of plexiglass, and a connector is fixed to the lower end of the guide rod, and the connector cooperates with the inner wall of the guide tube. The lamp is fixed on the connector, and the connector has a lead hole. The guide rod is made of plexiglass material, which not only has good light transmittance, but also provides sufficient strength and stability to meet the needs of the guide rod moving up and down in the guide tube. A connector is fixed to the lower end of the guide rod, and the connector cooperates with the inner wall of the guide tube to ensure the stability and accuracy of the guide rod during movement. At the same time, a lead hole is designed on the connector to lead out the power cord of the lamp to achieve connection with an external power supply. The lamp is installed on the connector by a specific fixing method (such as screws, buckles, etc.) to ensure that the lamp will not fall off or shake during the movement of the guide rod, thereby ensuring the stability of the lighting effect.

[0014] Alternatively, a sleeve is fixed on the connecting member, and the sleeve is slidably matched with the guide tube.

[0015] Preferably, the upper end of the guide rod is provided with a limit platform having an outer diameter larger than that of the guide rod, and the upper end of the limit platform is provided with a slide rail. The outer end of the rocker is hingedly connected to a slider, and the slider is slidably mounted on the slide rail so that the rocker swings and drives the guide rod to rise and fall. The guide rod and the limit platform rise and fall together, and the upper end of the display spring abuts against the limit platform. When the limit platform descends, the display spring is compressed, and when the limit platform rises, the display spring is expanded.

[0016] Preferably, the frame is equipped with a motor, which is connected to the cam through a coupling, a transmission seat is fixed on the top plate of the base, and the coupling is mounted on the transmission seat through a bearing. The motor drives the cam to rotate through the coupling.

[0017] Preferably, a transparent cover is provided on the upper end of the frame, and the transparent cover covers all the seesaws. The transparent cover covers and protects all the seesaws, reduces the working noise of the display device, and does not affect the user's viewing of the displayed goods.

[0018] This utility model provides a silent spring display device that effectively reduces direct wear between components by replacing the direct contact between the rocker and cam with an indirectly driven push rod. Supported by the inner wall of the guide hole, the push rod is protected from significant deformation by the lateral force exerted by the cam, significantly reducing noise during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 To show the structural diagram of the equipment;

[0020] Figure 2 This is a schematic diagram showing the exploded structure of the equipment;

[0021] Figure 3An exploded view showing the first partial structure of the device;

[0022] Figure 4 An exploded view showing the second partial structure of the equipment;

[0023] Figure 5 Schematic diagram of the explosion structure of the push rod;

[0024] Figure 6 Schematic diagram of the structure of the ejector rod.

[0025] Explanation of the accompanying drawings: 100, frame; 110, base top plate; 120, cylinder seat; 130, guide seat; 131, guide hole; 140, annular seat; 141, hinged seat; 150, motor; 151, coupling; 152, bearing; 160, transmission seat; 200, cam; 210, undulating surface; 300, seesaw; 310, slider; 400, push rod; 410, rod body; 420, ball bearing; 510, guide tube; 520, guide rod; 521, lamp; 522, connector; 523, lead hole; 524, limit table; 525, slide rail; 526, sleeve; 600, transparent cover. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings to make the technical solution of the present invention easier to understand and grasp. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] This embodiment provides a silent spring display device, wherein silent does not specifically mean no sound at all, but means that the sound is smaller than that of the prior art. Figure 1-6 As shown, the display device includes a frame 100, a cam 200 and a seesaw 300. The cam 200 can be mounted on the frame 100 so as to rotate horizontally, and the seesaw 300 can be swingably mounted on the frame 100. The top surface of the cam 200 continuously forms an undulating surface 210 along the rotating circumference. A guide hole 131 is provided on the frame 100, and a top rod 400 is passed through the guide hole 131. The upper end of the top rod 400 abuts against the inner end of the seesaw 300, and the lower end of the top rod 400 abuts against the undulating surface 210.

[0028] When the cam 200 rotates, its undulating surface 210 pushes the push rod 400 up and down, which in turn transmits the driving force to the seesaw 300 through the push rod 400, causing the seesaw 300 to swing. By replacing the direct contact between the seesaw 300 and the cam 200 with the indirect transmission of the push rod 400, direct wear between the components is effectively reduced. Furthermore, because the push rod 400 fits tightly with the guide hole 131 and the push rod 400 moves relatively smoothly within the guide hole 131, the push rod 400, supported by the inner wall of the guide hole 131, does not significantly deform the push rod 400 due to the lateral force applied by the cam 200, thereby significantly reducing noise during transmission.

[0029] like Figure 5 、 6 As shown, the push rod 400 includes a rod body 410, and balls 420 are installed at the upper and lower ends of the rod body 410. The introduction of the balls 420 utilizes the principle that rolling friction is much smaller than sliding friction. After the push rod 400 is installed with the balls 420, the contact between the push rod 400 and the rocker 300 and the cam 200 becomes rolling friction, which greatly reduces the friction coefficient, reduces friction loss and noise generation. In other optional embodiments, the balls 420 can also be installed only at the upper or lower end of the rod body 410, and the other end can be set as a hemispherical structure, or the balls 420 are not set at both ends of the rod body 410, but a hemispherical structure integrally connected to the rod body 410 is set.

[0030] like Figure 3 、 4 As shown, the frame 100 includes a base top plate 110, a cartridge seat 120 is fixed on the base top plate 110, a guide seat 130 is fixed in the cartridge seat 120, and the guide hole 131 is located on the guide seat 130. The cartridge seat 120 is fixed on the base top plate 110 for accommodating and fixing the guide seat 130. A guide hole 131 is provided in the guide seat 130 for guiding the up and down movement of the ejector rod 400. This design ensures that the ejector rod 400 can move along a predetermined trajectory during the transmission process, thereby improving the accuracy and stability of the transmission. The local structure of the frame 100 is decomposed into modules such as the base top plate 110, the cartridge seat 120 and the guide seat 130, which facilitates the assembly, disassembly and maintenance of the equipment. This modular design not only improves production efficiency, but also reduces maintenance costs.

[0031] like Figure 3As shown, the frame 100 includes an annular seat 140 fixed on the guide seat 130, and a plurality of groups of hinged seats 141 are provided on the annular seat 140, and a rocker 300 is hinged on each group of hinged seats 141. The annular seat 140 is fixed on the guide seat 130, and its design allows multiple groups of hinged seats 141 to be arranged around the annular seat 140. This design enables the device to support the installation of multiple rockers 300, thereby increasing the display space and improving the display capacity of the device. Multiple hinged seats 141 are located on the same annular seat 140, and the annular seat 140 can form a large-area contact with the guide seat 130, thereby improving the stability of the hinged seat 141. In other optional embodiments, a single hinged seat 141 can also be provided with an independent seat body.

[0032] Furthermore, the surface where the inner end of the seesaw 300 contacts the push rod 400 is flat. Designing the inner end of the seesaw 300 as a flat surface maximizes the contact area between it and the push rod 400. This design prevents the upper end of the push rod 400 from being positioned at a single location on the seesaw 300, reducing the lateral force between the push rod 400 and the seesaw 300 and lowering the risk of deformation.

[0033] like Figure 1-3 As shown, the frame 100 is provided with a compression assembly, which includes a vertical guide tube 510 and a guide rod 520 that can move up and down relative to the guide tube. The guide rod 520 is light-transmissive and has a lamp 521 installed therein. The display spring is mounted on the guide rod 520, and the guide rod 520 has a lamp 521 installed therein, such as an LED lamp, which can emit light to illuminate the display spring and enhance the display effect.

[0034] Guide rod 520 is made of plexiglass. A connector 522 is fixed to the lower end of guide rod 520. A sleeve is fixed to this connector 522, which slidably engages with guide tube 510. Light fixture 521 is fixed to this connector 522, which has a lead-in hole 523. Guide rod 520 is made of plexiglass, a material that not only offers excellent light transmittance but also provides sufficient strength and stability to accommodate the vertical movement of guide rod 520 within guide tube 510. A connector 522 is fixed to the lower end of guide rod 520. A sleeve 526, made of steel, is further fixed to this connector 522. The guide tube is a linear bearing. Sleeve 526 slidably engages with the inner wall of guide tube 510, preventing direct contact between guide rod 520 and guide tube 510. This reduces friction during the upward and downward movement of guide rod 520, ensuring the stability and accuracy of guide rod 520 during vertical movement. At the same time, the connector 522 is designed with a lead hole 523 to lead out the power line of the lamp 521 to achieve connection with an external power source. In other optional embodiments, the connector 522 can also be directly slidably matched with the inner wall of the guide tube 510.

[0035] like Figure 1-3 As shown, the upper end of the guide rod 520 is provided with a limit platform 524 having an outer diameter larger than that of the guide rod 520. The upper end of the limit platform 524 is provided with a slide rail 525. The outer end of the rocker 300 is hinged to the slider 310, and the slider 310 is slidably mounted on the slide rail 525, so that the rocker 300 swings and drives the guide rod 520 to rise and fall. The guide rod 520 and the limit platform 524 rise and fall together, and the upper end of the display spring abuts against the limit platform 524. When the limit platform 524 descends, it compresses the display spring, and when the limit platform 524 rises, the display spring expands.

[0036] like Figure 3 、 4 As shown, the frame 100 is equipped with a motor 150, which is connected to the cam 200 through a coupling 151. A transmission seat 160 is fixed on the base top plate 110, and the coupling 151 is installed on the transmission seat 160 through a bearing 152. The motor 150 drives the cam 200 to rotate through the coupling 151.

[0037] like Figure 2 As shown, a transparent cover 600 is provided on the upper end of the frame 100, and the transparent cover 600 covers all the rocker plates 300. The transparent cover 600 covers and protects all the rocker plates 300, reduces the working noise of the display device, and does not affect the user's viewing of the displayed goods.

[0038] When the motor 150 is powered on, it drives the coupling 151 to rotate, and the coupling 151 drives the cam 200 to rotate. As the push rod 400 moves from the lower position of the undulating surface 210 to the higher position of the undulating surface 210, it rises, causing the inner end of the seesaw 300 to rise and the outer end of the seesaw 300 to fall. The seesaw 300 pushes the guide rod 520 and the limit plate 524 to fall, compressing the display spring. As the push rod 400 moves from the higher position of the undulating surface 210 to the lower position of the undulating surface 210, the display spring pushes the limit plate 524 to rise, thereby pushing the outer end of the seesaw 300 to rise, the inner end of the seesaw 300 to fall, and the push rod 400 to fall. In this way, the rotation of the cam 200 drives the limit plate 524 to move back and forth, causing the display spring to repeatedly compress and expand.

Claims

1. A silent spring display device, comprising a frame (100), a cam (200) and a seesaw (300), wherein the cam (200) is mounted on the frame (100) so as to be rotatable in the horizontal direction, and the seesaw (300) is mounted on the frame (100) so as to be swingable, and the top surface of the cam (200) continuously forms an undulating surface (210) along a rotation circle, characterized in that: The frame (100) is provided with a guide hole (131), a push rod (400) is passed through the guide hole (131), the upper end of the push rod (400) abuts against the inner end of the seesaw (300), and the lower end of the push rod (400) abuts against the undulating surface (210).

2. A silent spring display device according to claim 1, characterized in that: The push rod (400) comprises a rod body (410), and a ball (420) is installed at the upper end and / or the lower end of the rod body (410).

3. The silent spring display device according to claim 1, characterized in that: The frame (100) comprises a base top plate (110), a cartridge seat (120) is fixed on the base top plate (110), a guide seat (130) is fixed inside the cartridge seat (120), and the guide hole (131) is located on the guide seat (130).

4. The silent spring display device according to claim 3, characterized in that: The frame (100) comprises an annular seat (140) fixed on the guide seat (130), and a plurality of groups of hinged seats (141) are provided on the annular seat (140), and a rocker (300) is hinged on each group of hinged seats (141).

5. The silent spring display device according to claim 1, characterized in that: The surface where the inner end of the seesaw (300) contacts the push rod (400) is a plane.

6. The silent spring display device according to claim 1, characterized in that: The frame (100) is provided with a compression assembly, which includes a vertical guide tube (510) and a guide rod (520) capable of moving up and down relative to the guide tube. The guide rod (520) is light-transmissive and has a lamp (521) installed therein.

7. The silent spring display device according to claim 6, characterized in that: The guide rod (520) is made of organic glass, a connecting piece (522) is fixed to the lower end of the guide rod (520), the lamp (521) is fixed on the connecting piece (522), and the connecting piece (522) has a lead hole (523); The connecting member (522) is slidably engaged with the inner wall of the guide tube (510), or a sleeve (526) is fixed on the connecting member (522), and the sleeve (526) is slidably engaged with the guide tube (510).

8. The silent spring display device according to claim 6, characterized in that: The upper end of the guide rod (520) is provided with a limit platform (524) having an outer diameter larger than that of the guide rod (520), and the upper end of the limit platform (524) is provided with a slide rail (525). The outer end of the rocker (300) is hinged to a slider (310), and the slider (310) is slidably mounted on the slide rail (525), so that the rocker (300) swings to drive the guide rod (520) to rise and fall.

9. The silent spring display device according to claim 3, characterized in that: The frame (100) is equipped with a motor (150), the motor (150) is connected to the cam (200) through a coupling (151), a transmission seat (160) is fixed on the base top plate (110), and the coupling (151) is installed on the transmission seat (160) through a bearing (152).

10. The silent spring display device according to claim 1, characterized in that: A transparent cover (600) is provided at the upper end of the frame (100), and the transparent cover (600) covers all the rocker plates (300).

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