Chain straight reciprocating linkage push rod

Abstract

The utility model provides a kind of chain straight line repeated linkage push rod, the other end of straight line motion push rod is equipped with the input hole alignment with sliding groove, and the opposite end of sliding rail bottom cover is fixedly connected with hinged groove along straight line motion push rod;Compared with prior art, the utility model passes through chain drive mechanism and sprocket drive mechanism input power, makes straight line motion push rod slide inside two slider guides by driving input hole, while, the starting position of straight line motion push rod telescoping and the maximum position of telescoping are monitored by two hall switches, by slider guide, guide rail upper cover, straight line motion push rod and sliding rail bottom cover, make whole convenient to assemble, when assembling, two slider guides are buckled together, straight line motion push rod is clamped inside, and two slider guides are fixedly connected together with guide rail upper cover and sliding rail bottom cover by bolt through mounting hole, upper cover fixed hole, sliding rail bottom cover fixed hole and bolt.

Description

Technical Field

[0001] This utility model relates to the field of massage chair technology, and in particular to a chain-driven linear repeating push rod. Background Technology

[0002] After decades of development, improved living standards and the maturation of massage chair technology and the market have opened up a new field for the healthy development of massage chairs. Due to continuous market expansion, technological advancements, and industry specialization, a wide variety of massage chairs have gradually gained consumer favor, allowing consumers to enjoy a professional massage experience in their living rooms. However, the expanding market and intense competition among massage chair manufacturers have led to the industry's maturing development. To address this, manufacturers are constantly launching massage chairs with new functions and designs, and even incorporating internet technology to proactively cater to consumers from different social strata, stimulating consumer demand and providing new massage experiences and stress relief.

[0003] Currently, most massage chairs on the market are driven by electric push rods to make the chair recline. However, when performing functions such as rocking, the existing electric push rods cannot achieve continuous linear repetitive motion to realize the rocking function of the massage chair. In addition, the existing push rod mechanism is connected to the edge of the chain drive mechanism for driving, resulting in the push rod mechanism extending outwards for a long time and occupying a large area. Therefore, a chain linear repetitive motion push rod is proposed. Utility Model Content

[0004] To address at least one of the aforementioned technical shortcomings, this utility model provides a sprocket linear repetitive linkage push rod, comprising: a push rod mechanism, Hall switches, and a chain drive mechanism. Two Hall switches are fixed to the push rod mechanism, which is driven by the chain drive mechanism and the sprocket drive mechanism. The two sprockets of the chain drive mechanism are distributed in a straight line with the drive gear and the chassis transmission gear, and the sprocket used for power input is coaxial with the chassis transmission gear.

[0005] Furthermore, the push rod mechanism includes a slide rail bottom cover with several slide rail bottom cover fixing holes. Two parallel and interlocking slider guide rails are fixedly connected to the upper surface of the slide rail bottom cover. Several mounting holes are evenly distributed on both sides of the slider guide rail edges. A sliding groove is formed in the middle of the interlocking surface of the two slider guide rails. An output groove aligned with the sliding groove is formed in the middle of the slide rail bottom cover. A linear motion push rod is slidably connected to one end of the two slider guide rails. A guide rail top cover is provided on the upper surface of the two slider guide rails. Several top cover fixing holes are formed on the guide rail top cover and bolted to the mounting holes. Two Hall switches are fixedly connected to the upper surface of the guide rail top cover. An output hole is formed at the outer end of the linear motion push rod, and an input hole aligned with the sliding groove is formed at the other end of the linear motion push rod. A hinge groove is fixedly connected to the slide rail bottom cover at the opposite end of the linear motion push rod.

[0006] Furthermore, the chain drive mechanism includes: a geared motor, a chassis, bearing housings, a chassis transmission gear, a sprocket, a chain, a chain extension link, and a chain groove bracket. A drive gear is installed at the output end of the geared motor. The chassis has several chassis mounting holes, and the geared motor is mounted on the chassis. The chassis mounting holes are fixedly connected to the gear cover mounting holes via bolts and threaded sleeves. The chassis has gear holes for mounting the drive gear. The gear cover has two bearing holes, each containing a bearing housing. Each bearing housing has a rotating shaft at its center, and the bottom of the central rotating shaft is connected to the drive gear. The chassis transmission gears mesh with each other. The top of each of the two rotating shafts is fixedly connected to a sprocket placed on the gear cover. The gear cover has several gear cover fixing holes that align with the fixing holes of the slide rail bottom cover. A chain is provided between the two sprockets. The chain has a chain groove bracket fixed to the gear cover around its periphery. The chain groove bracket has several fixing holes. The fixing holes of the slide rail bottom cover are connected to the fixing holes of the gear cover by bolts passing through the fixing holes. A chain extension rod is rotatably connected to the chain. The other end of the chain extension rod is rotatably connected to a connecting rod output shaft. The output shaft passes through the output groove and is rotatably connected to the input hole.

[0007] Furthermore, the diameter of the drive gear is smaller than the diameter of the chassis drive gear. Beneficial effects

[0008] Compared with existing technologies, the two sprockets of the chain drive mechanism are distributed in a straight line with the drive gear and the chassis transmission gear, and the sprocket used for power input is coaxial with the chassis transmission gear. This allows the sprocket at the power input end of the push rod mechanism to be located at the center of the chain drive mechanism, so that the entire push rod mechanism can move towards the center of the chain drive mechanism, thereby reducing the area occupied by the entire mechanism in space.

[0009] Compared with the prior art, this utility model inputs power through a chain drive mechanism and a sprocket drive mechanism. Through the drive input hole, the linear motion push rod slides inside the two slider guide rails. At the same time, two Hall switches monitor the starting position and the maximum position of the extension and retraction of the linear motion push rod. The slider guide rail, guide rail cover, linear motion push rod, and slide rail bottom cover make the whole assembly easy. During assembly, the two slider guide rails are fastened together, the linear motion push rod is clamped inside, and the two slider guide rails are fixedly connected to the guide rail cover and slide rail bottom cover by bolts through mounting holes, top cover fixing holes, slide rail bottom cover fixing holes, and bolts.

[0010] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is an isometric view of the entire utility model.

[0012] Figure 2 This is an exploded view of the push rod mechanism of this utility model.

[0013] Figure 3 This is a schematic diagram of the chain of this utility model.

[0014] Figure 4 This is an isometric view of the chassis transmission gear of this utility model.

[0015] Figure 5 This is an isometric view of the gear cover fixing hole of this utility model.

[0016] Figure 6 This is an axonometric view of the chassis of this utility model.

[0017] Figure 7 This is an isometric view of the gear cover of this utility model.

[0018] Figure 8 This is an isometric view of the chain groove bracket of this utility model.

[0019] exist Figures 1 to 8The correspondence between component names or lines and the attached drawing numbers is as follows: Push rod mechanism 1, slider guide rail 101, sliding groove 112, mounting hole 111, guide rail cover 102, cover fixing hole 121, linear motion push rod 103, input hole 131, output hole 132, Hall switch 2, chain drive mechanism 3, geared motor 401, drive gear 411, chassis 412, gear hole 413, chassis fixing hole 414, gear cover 422, bearing hole 423, rotating shaft 424, gear cover fixing hole 425, bearing seat 426, chassis transmission gear 403, slide rail bottom cover 104, sprocket 404, chain 405, chain extension link 406, link output shaft 461, chain groove bracket 407. Detailed Implementation

[0020] Please refer to Figures 1 to 8 ;

[0021] This embodiment provides a linearly reciprocating push rod driven by a sprocket, including: a push rod mechanism 1, Hall effect switches 2, and a chain drive mechanism 3. Two Hall effect switches 2 are fixed to the push rod mechanism 1. The push rod mechanism 1 is driven by the chain drive mechanism 3. (Refer to...) Figure 5 The two sprockets 404 of the chain drive mechanism 3 are distributed on a straight line with the drive gear 411 and the chassis transmission gear 403, and the sprocket 404 used for power input is coaxial with the chassis transmission gear 403.

[0022] In practical implementation, compared with the prior art, the two sprockets 404 of the chain drive mechanism 3 are distributed on a straight line with the drive gear 411 and the chassis transmission gear 403, and the sprocket 404 used for power input is coaxial with the chassis transmission gear 403. This allows the sprocket 404 at the power input end of the push rod mechanism 1 to be located at the center of the chain drive mechanism 3, so that the entire push rod mechanism 1 moves towards the center of the chain drive mechanism 3, thereby reducing the area occupied by the entire mechanism in space.

[0023] Further reference Figure 1 and Figure 2The push rod mechanism 1 includes a slide rail bottom cover 104, which has several slide rail bottom cover fixing holes 142. Two parallel and interlocking slider guide rails 101 are fixedly connected to the upper surface of the slide rail bottom cover 104. Several mounting holes 111 are evenly distributed on both sides of the edge of each slider guide rail 101. A sliding groove 112 is formed in the middle of the interlocking surface of each of the two slider guide rails 101. A through-hole output groove 141 aligned with the sliding groove 112 is formed in the middle of the slide rail bottom cover 104. A through-hole is slidably connected inside the two slider guide rails 101. A linear motion push rod 103 at one end, and a guide rail cover 102 on the upper surface of the two slider guide rails 101. The guide rail cover 102 has several cover fixing holes 121 that are bolted to the mounting holes 111. Two Hall switches 2 are fixedly connected to the upper surface of the guide rail cover 102. The outer end of the linear motion push rod 103 has an output hole 132. The other end of the linear motion push rod 103 has an input hole 131 that is aligned with the sliding groove 112. The slide rail bottom cover 104 is fixedly connected to a hinge groove 143 at the opposite end of the linear motion push rod 103.

[0024] In practical implementation, compared with the prior art, this utility model inputs power through a chain drive mechanism and a sprocket drive mechanism, and through the drive input hole, the linear motion push rod slides inside the two slider guide rails. At the same time, two Hall switches monitor the starting position and the maximum position of the extension and retraction of the linear motion push rod. The slider guide rail, the guide rail cover, the linear motion push rod, and the slide rail bottom cover make the whole assembly easy. During assembly, the two slider guide rails are fastened together, the linear motion push rod is clamped inside, and the two slider guide rails are fixedly connected to the guide rail cover and the slide rail bottom cover by bolts through the mounting holes, the top cover fixing holes, the slide rail bottom cover fixing holes, and the bolts.

[0025] When in use, the hinge slot 143 is used for installation and fixation, the input hole 131 is used for outputting power, the output hole 132 is used for inputting power, the Hall switch 2 is used for detection and control, and the whole is assembled by bolts and threaded holes. During linear motion, the linear motion push rod 103 moves linearly inside the sliding groove 112 between the two slider guide rails 101.

[0026] Further reference Figures 3 to 8The chain drive mechanism 3 includes: a geared motor 401, a drive gear 411, a chassis 412, a gear hole 413, a chassis fixing hole 414, a gear cover 422, a bearing hole 423, a rotating shaft 424, a gear cover fixing hole 425, a bearing seat 426, a chassis transmission gear 403, a sprocket 404, a chain 405, a chain extension link 406, a link output shaft 461, and a chain groove bracket 407. The output end of the geared motor 401 is mounted with... There is a drive gear 411. The chassis 412 has several chassis mounting holes 414. The geared motor 401 is mounted on the chassis 412. The chassis mounting holes 414 are fixedly connected to the gear cover mounting holes 425 by bolts and threaded sleeves. The chassis 412 has gear holes 413 for mounting the drive gear 411. The gear cover 422 has two bearing holes 423, each containing a bearing seat 426. Each component has a central rotating shaft 424. The bottom of the central rotating shaft 424 is connected to a chassis transmission gear 403 that meshes with the drive gear 411. The tops of both rotating shafts 424 are fixedly connected to sprockets 404 placed on the gear cover 422. The gear cover 422 has several gear cover fixing holes 425 that align with the slide rail bottom cover fixing holes 142. A chain 405 is provided between the two sprockets 404. The chain 405 has a chain groove bracket 407 fixed to the gear cover 422 around its periphery. The chain groove bracket 407 has several fixing holes 408. The slide rail bottom cover fixing holes 142 are connected to the gear cover fixing holes 425 by bolts passing through the fixing holes 408. A chain extension rod 406 is rotatably connected to the chain 405. The other end of the chain extension rod 406 is rotatably connected to a connecting rod output shaft 461. The output shaft 461 passes through the output groove 141 and is rotatably connected to the input hole 131.

[0027] In specific implementation, when the chain drive mechanism 3 is driven, the output end of the reduction motor 401 drives the drive gear 411 to rotate, which in turn drives the chassis transmission gear 403 to rotate. The chassis transmission gear 403 then drives the sprocket 404 used for power input to rotate, causing the chain 405 to rotate on the two sprockets 404. At this time, the chain extension link 406 follows the chain 405, causing the link output shaft 461 to move linearly inside the output groove 141. Then, through the input hole 131, it drives the linear motion of the push rod mechanism 1. The push rod 103 moves linearly inside the sliding groove 112 between the two slider guide rails 101.

[0028] Furthermore, the diameter of the drive gear 411 is smaller than the diameter of the chassis drive gear 403.

[0029] In practical implementation, a force-saving structure is formed between the drive gear 411 and the chassis transmission gear 403, which can be driven by a small-power geared motor 401.

Claims

1. A chain-driven linear repeating push rod, comprising: The push rod mechanism (1), Hall switch (2), and chain drive mechanism (3) are provided. Two Hall switches (2) are fixed on the push rod mechanism (1). The push rod mechanism (1) is driven by the chain drive mechanism (3). The characteristic feature is that the two sprockets (404) of the chain drive mechanism (3) are distributed on a straight line with the drive gear (411) and the chassis transmission gear (403), and the sprocket (404) used for input power is coaxial with the chassis transmission gear (403).

2. The chain-driven linear repeating push rod according to claim 1, characterized in that: The push rod mechanism (1) includes a slide rail bottom cover (104), which has several slide rail bottom cover fixing holes (142). Two parallel and interlocking slider guide rails (101) are fixedly connected to the upper surface of the slide rail bottom cover (104). Several mounting holes (111) are evenly distributed on both sides of the edge of the slider guide rails (101). A sliding groove (112) is opened in the middle of the interlocking surface of each of the two slider guide rails (101). A through-hole output groove (141) aligned with the sliding groove (112) is opened in the middle of the slide rail bottom cover (104). A through-hole is slidably connected inside the two slider guide rails (101). The linear motion push rod (103) has a guide rail cover (102) on the upper surface of the two slider guide rails (101). The guide rail cover (102) has several cover fixing holes (121) that are bolted to the mounting holes (111). The upper surface of the guide rail cover (102) is fixedly connected to two Hall switches (2). The outer end of the linear motion push rod (103) is provided with an output hole (132). The other end of the linear motion push rod (103) is provided with an input hole (131) that is aligned with the sliding groove (112). The bottom cover of the slide rail (104) is fixedly connected to a hinge groove (143) at the opposite end of the linear motion push rod (103).

3. The chain-driven linear repeating push rod according to claim 2, characterized in that: The chain drive mechanism (3) includes: a geared motor (401), a drive gear (411), a chassis (412), a gear hole (413), a chassis fixing hole (414), a gear cover (422), a bearing hole (423), a rotating shaft (424), a gear cover fixing hole (425), a bearing seat (426), a chassis transmission gear (403), a sprocket (404), a chain (405), a chain extension link (406), a link output shaft (461), and a chain groove bracket (407). The geared motor (401) The output end is equipped with a drive gear (411), and the chassis (412) has several chassis fixing holes (414). The geared motor (401) is mounted on the chassis (412). The chassis fixing holes (414) are fixedly connected to the gear cover fixing holes (425) by bolts and straight threaded sleeves. The chassis (412) has a gear hole (413) for setting the drive gear (411). The gear cover (422) has two bearing holes (423). Each bearing hole (423) is equipped with a bearing seat (426). The center of each of the two rotating shafts (426) is provided with a rotating shaft (424). The bottom of the rotating shaft (424) located at the center is connected to a chassis transmission gear (403) that meshes with the drive gear (411). The top of each rotating shaft (424) is fixedly connected to a sprocket (404) placed on the gear cover (422). The gear cover (422) has several gear cover fixing holes (425) that align with the slide rail bottom cover fixing holes (142). A chain (405) is provided between the two sprockets (404). The periphery of the chain (405) is provided with... There is a chain groove bracket (407) fixed on the gear cover (422). The chain groove bracket (407) is provided with several fixing holes (408). The fixing hole (142) of the slide rail cover is connected to the fixing hole (425) of the gear cover by bolts passing through the fixing hole (408). A chain extension rod (406) is rotatably connected on the chain (405). The other end of the chain extension rod (406) is rotatably connected to a connecting rod output shaft (461). The output shaft (461) passes through the output groove (141) and is rotatably connected to the input hole (131).

4. The chain-driven linear repeating push rod according to claim 3, characterized in that: The diameter of the drive gear (411) is smaller than the diameter of the chassis drive gear (403).

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