阅读说明：本技术 用于鞋跟处的安全稳定型滑轮装置 (A safe and stable form pulley gear for heel department ) 是由 肖仁强 于 2018-08-29 设计创作，主要内容包括：本发明涉及用于鞋跟处的安全稳定型滑轮装置,包括滑轮座、滑轮组件、挡盖和两个U型挡杆,滑轮座上设有两个轮槽、连通槽,各轮槽的外壁面由主壁面、过渡壁面和下壁面组成,过渡壁面具有与滑轮组件的端部外壁相适配的限位壁段,限位壁段的作用面上连接有第一弹性补偿片；连通槽的前后两侧分别有隔离块,隔离块相向侧面顶端还分别相向凸伸设置有弧形挡块,弧形挡块的作用面上连接有第二弹性补偿片；第一弹性补偿片和第二弹性补偿片均采用具蜂窝结构的橡胶片。本发明可降低对U型挡杆第二端与挡盖顶面之间间距的制造精度要求和装配难度,避免滑轮组件上下浮动,并降低切换至下凸状态时对挡盖的冲击影响,增强对下凸状态下的滑轮轴的限制效果。(The invention relates to a safe and stable pulley device for a heel, which comprises a pulley seat, a pulley assembly, a blocking cover and two U-shaped blocking rods, wherein two wheel grooves and a communication groove are formed in the pulley seat; the front side and the rear side of the communicating groove are respectively provided with an isolating block, the top ends of the opposite side surfaces of the isolating blocks are respectively provided with an arc-shaped stop block in an oppositely protruding mode, and the action surface of the arc-shaped stop block is connected with a second elastic compensating sheet; the first elastic compensation piece and the second elastic compensation piece are both made of rubber sheets with honeycomb structures. The invention can reduce the manufacturing precision requirement and the assembly difficulty of the distance between the second end of the U-shaped stop lever and the top surface of the stop cover, avoid the pulley assembly from floating up and down, reduce the impact influence on the stop cover when switching to the downward convex state and enhance the limiting effect on the pulley shaft in the downward convex state.)

1. A safe and stable pulley gear for heel department, including pulley holder, loose pulley assembly, fender lid and two U type pin, be equipped with two left and right sides set up side by side and respectively open-ended downward race, intercommunication setting up between two races and bottom open-ended intercommunication groove and two respectively around run through and with the intercommunication groove the jack pair that communicates, loose pulley assembly violently establishes in two races and intercommunication groove and with the first pressure spring butt of intercommunication groove middle part, U type pin is inserted in corresponding jack pair and its second end is set up in the intercommunication groove telescopically from front to back,

the outer wall surface of each wheel groove consists of a main wall surface and a lower wall surface connected to the bottom end of the main wall surface through a transition wall surface, the lower wall surface protrudes inwards relative to the main wall surface, the transition wall surface is provided with a limiting wall section matched with the outer wall of the end part of the pulley assembly, and the action surface of the limiting wall section is connected with a first elastic compensation sheet;

the front side and the rear side of the communicating groove are respectively provided with an isolating block, the top ends of the opposite side surfaces of the isolating blocks are respectively provided with an arc-shaped stop block in an oppositely protruding mode, the acting surface of the arc-shaped stop block is connected with a second elastic compensating sheet, and the stop covers are fixedly arranged on the two isolating blocks and cover the opening at the bottom of the communicating groove;

the first elastic compensation piece and the second elastic compensation piece are both made of rubber sheets with honeycomb structures.

2. The safety and stability pulley device for heels of claim 1, wherein the left and right sides of the bottom of the pulley base are respectively provided with a connecting table surface in a protruding manner.

3. The safety and stability pulley device for heels of claim 1, wherein the bottom surface of each isolation block is further provided with a reinforcing groove, and the top surface of the blocking cover is provided with a reinforcing block matched with the reinforcing groove at a position corresponding to each reinforcing groove.

4. The pulley device according to claim 1, wherein the two spacers have arc-shaped vertical grooves at the middle of the facing surfaces, the communication groove portion between the two arc-shaped vertical grooves is a compression spring installation groove, the communication groove portions at the left and right sides of the compression spring installation groove are wheel bearing connection grooves, the top wall of the wheel bearing connection groove protrudes downward relative to the top wall of the compression spring installation groove, and the first compression spring is an elliptical spring adapted to be disposed in the compression spring installation groove.

5. The pulley assembly of claim 1, wherein the pulley assembly includes a pulley shaft and two pulley bodies axially fixed and circumferentially rotatably disposed on the pulley shaft, the pulley bodies are respectively disposed on the pulley grooves, the pulley shaft is disposed in the communicating groove and abuts against a bottom end of the first compression spring, and has a reducing ring near an end of the pulley shaft, and the length of the pulley shaft is equivalent to a distance between main wall surfaces of the two pulley grooves, and the lower wall surface protrudes inward relative to the main wall surfaces by a width equivalent to a distance between the end of the pulley shaft and an outer ring of the reducing ring.

6. The safety and stability pulley device for use at heels of claim 5, wherein the thickness of the blocking cover is smaller than the radius difference between the pulley body and the pulley shaft.

7. The safety and stability type pulley device for the heel of the shoe according to claim 1, wherein the bottom of the pulley seat is further connected with a sliding cover seat, the pulley seat is provided with a sliding cavity and a sliding cover which is in sliding fit with the sliding cavity back and forth at positions corresponding to the wheel grooves, the bottom surface of the sliding cover seat, the bottom surface of the sliding cover and the bottom surface of the blocking cover are all on the same horizontal plane, the left side wall and the right side wall of each sliding cavity are respectively provided with a first sliding groove, the first sliding groove horizontally extends backwards to the outer side of the bottom of the wheel groove, the first sliding groove at the wheel groove is provided with a protruding grain, and the corresponding surface of the sliding cover is provided with a fastening hole matched with.

8. The safety and stability pulley device for use at heels of claims 7, wherein the area of the sliding cover is larger than the opening area of the wheel groove, and the area of the sliding cavity is 2 times or more than 2 times of the area of the sliding cover.

9. The safety and stability pulley device for heels of claim 7, wherein the left and right sides of the blocking cover are respectively provided with a second sliding slot, and the left and right sides of each sliding cover are respectively provided with a protruding strip which is matched with the first sliding slot and the second sliding slot.

Technical Field

The invention relates to the technical field of shoes, in particular to a safe and stable pulley device for a heel.

Background

With the development of society and the improvement of living standard, people continuously pursue the sports with both excitement and entertainment, and the shoes for walking by a sudden strain of a foot are produced, but the prior shoes for walking by a sudden strain of a foot have the following disadvantages in the using process: firstly, because the gyro wheel needs often to be dismantled, causes the draw-in groove to warp and wearing and tearing, leads to the shaft not hard up, if untimely processing, can appear falling the necrotic phenomenon suddenly at high speed in-process of sliding, causes the runner to fall down, has serious potential safety hazard. Secondly, the roller is inconvenient to mount and dismount and can be mounted and dismounted only by means of a dismounting tool. In addition, the existing roller skates have various styles, but have relatively single functions, and cannot meet different requirements of users from a beginner stage to a skilled stage.

Therefore, the chinese patent publication (CN 207024593U) discloses a roller device and a walking shoe sole and a roller shoe sole having the same, which realize the transformation of walking or the roller shoe sole and a flat sole, and the roller wheel and the wheel shaft are combined to form a roller assembly, so that the roller assembly is easy to assemble and disassemble, and has reliable and stable performance. The pulley device includes: the pulley seat is provided with two wheel grooves which are arranged side by side at the left and right, a communicating groove which is communicated between the two wheel grooves and has an opening at the bottom, and two jack pairs, the opening at the bottom of the communicating groove is detachably connected with a baffle cover, and the middle part of the communicating groove is vertically provided with a first pressure spring; the pulley assembly comprises a pulley shaft and two pulley bodies, the pulley bodies are correspondingly arranged on the pulley grooves, and the pulley shaft is connected with the bottom end of the first pressure spring; the first ends of the two U-shaped stop rods extend out of the pulley seats respectively and are connected together through the connecting plate, the second pressure springs are sleeved outside the U-shaped stop rods between the connecting plate and the pulley seats, and the second ends of the U-shaped stop rods movably pass in and out of the communicating grooves and the space height between the second ends and the stop covers is equal to the diameter of the pulley shafts.

However, in actual production and use, the applicant found that: 1. the space height between the second end of the U-shaped stop lever and the stop cover is required to be matched with the diameter of the pulley shaft when the pulley assembly is used in a downward-protruding mode, so that the requirement on manufacturing precision is high, the installation position of the second end of the U-shaped stop lever is required to be high, the height cannot be higher or lower during assembly, and otherwise, the height cannot be matched with the diameter of the pulley shaft even if the size precision reaches the standard; 2. because the clearance is left between the pulley spindle both ends of loose pulley assembly and the race lateral wall in order to guarantee the normal rotation of pulley body to loose pulley assembly switches over to the lower convex state by the state of contracting from top and gets rid of what the sliding closure blockked and accomplish with the help of the push down effort of first pressure spring, so mainly utilize the fender lid of intercommunication groove bottom opening part to receive the impact and restrict the pulley spindle, and the bonding strength requirement to keeping off the lid is high, if not paying attention to the maintenance for a long time, probably leads to keeping off the lid and drop and take place the accident.

Disclosure of Invention

The invention aims to provide a safe and stable pulley device for a heel, which can reduce the manufacturing precision requirement and the assembly difficulty of the distance between the second end of a U-shaped stop lever and the top surface of a stop cover, avoid the up-and-down floating of a pulley assembly, reduce the impact influence on the stop cover when the pulley assembly is switched to a downward convex state, and enhance the limiting effect on a pulley shaft in the downward convex state.

The technical solution adopted by the invention is as follows:

the safe and stable pulley device for the heel comprises a pulley seat, pulley assemblies, a blocking cover and two U-shaped blocking rods, wherein the pulley seat is provided with two pulley grooves which are arranged side by side from left to right and are respectively provided with downward openings, a communicating groove which is communicated with the two pulley grooves and is arranged between the two pulley grooves and is provided with an opening at the bottom, and two jack pairs which are respectively penetrated in front and back and are communicated with the communicating groove;

the outer wall surface of each wheel groove consists of a main wall surface and a lower wall surface connected to the bottom end of the main wall surface through a transition wall surface, the lower wall surface protrudes inwards relative to the main wall surface, the transition wall surface is provided with a limiting wall section matched with the outer wall of the end part of the pulley assembly, and the action surface of the limiting wall section is connected with a first elastic compensation sheet;

the front side and the rear side of the communicating groove are respectively provided with an isolating block, the top ends of the opposite side surfaces of the isolating blocks are respectively provided with an arc-shaped stop block in an oppositely protruding mode, the acting surface of the arc-shaped stop block is connected with a second elastic compensating sheet, and the stop covers are fixedly arranged on the two isolating blocks and cover the opening at the bottom of the communicating groove;

the first elastic compensation piece and the second elastic compensation piece are both made of rubber sheets with honeycomb structures.

Preferably, the left side and the right side of the bottom of the pulley seat are respectively provided with a connecting table surface in a protruding manner.

Preferably, the bottom surface of each isolation block is further provided with a reinforcing groove, and the top surface of the blocking cover is provided with a reinforcing block matched with the reinforcing groove at a position corresponding to each reinforcing groove.

Preferably, the middle parts of the opposite surfaces of the two isolation blocks are respectively provided with an arc-shaped vertical groove, the communication groove part between the two arc-shaped vertical grooves is set as a pressure spring installation groove, the communication groove parts at the left side and the right side of the pressure spring installation groove are respectively set as wheel bearing connection grooves, the top wall of the wheel shaft connection groove protrudes downwards relative to the top wall of the pressure spring installation groove, and the first pressure spring is an elliptical spring which is adaptive to the pressure spring installation groove.

Preferably, the pulley assembly comprises a pulley shaft and two pulley bodies which are axially fixed and circumferentially and rotatably arranged on the pulley shaft, the pulley bodies are respectively and correspondingly arranged on the pulley grooves, the pulley shaft is transversely arranged in the communicating groove and abutted to the bottom end of the first pressure spring, a reducing ring is arranged at the position close to the end part of the pulley shaft, the length of the pulley shaft is equal to the distance between the main wall surfaces of the two pulley grooves, and the inward protruding width of the lower wall surface relative to the main wall surface is equal to the distance between the end part of the pulley shaft and the outer ring of the reducing ring.

Preferably, the thickness of the blocking cover is smaller than the radius difference between the pulley body and the pulley shaft.

Preferably, the bottom of the pulley seat is further connected with a sliding cover seat, the pulley seat and the corresponding positions of the wheel grooves are respectively provided with a sliding cavity and a sliding cover which is in sliding fit with the sliding cavity in a front-back manner, the bottom surface of the sliding cover seat, the bottom surface of the sliding cover and the bottom surface of the blocking cover are all on the same horizontal plane, the left side wall and the right side wall of each sliding cavity are respectively provided with a first sliding groove, the first sliding groove horizontally extends to the outer side of the bottom of the wheel groove in a back-to-back manner, the first sliding groove at the wheel groove is provided with a convex particle, and the corresponding surface of.

Preferably, the area of the sliding cover is larger than the opening area of the wheel groove, and the area of the sliding cavity is 2 times or more than 2 times of the area of the sliding cover.

Preferably, the left side surface and the right side surface of the blocking cover are respectively provided with a second sliding groove, and the left side surface and the right side surface of each sliding cover are respectively provided with a convex strip matched with the first sliding groove and the second sliding groove.

The invention has the beneficial effects that:

1. the pulley assembly is connected with a first pressure spring in the middle of a communicating groove, a second pressure spring is sleeved on a first end of a U-shaped stop lever, a second end of the U-shaped stop lever movably enters and exits the communicating groove, the pulley assembly can move up and down in the communicating groove to adjust the type of a sole when the second end of the U-shaped stop lever moves backwards away from the communicating groove, or the pulley assembly is pushed downwards to a stop cover under the action of the first pressure spring to enable a pulley body to protrude downwards relative to the stop cover, and then the pulley assembly is used as an explosion sole or a roller skate sole, or the pulley assembly is pushed upwards to enable the pulley body to retract in a pulley seat under the action of the first pressure spring, and then the pulley assembly is used as a flat sole, after the position of the pulley assembly is adjusted to a proper position, the second end of the U-shaped stop lever enters the communicating groove to keep a space between the second end of the U-shaped stop lever and the stop cover or a space between the second end of the U, safe use and reliable and stable performance. The invention can be switched between a hiking shoe or a roller-skating shoe and a flat-sole shoe.

2. The invention is provided with an arc-shaped stop block on the top of the opposite side surfaces of the two spacing blocks and a second elastic compensation sheet on the action surface of the arc-shaped stop block, and is also provided with a limit wall section on the outer wall surface of the wheel groove corresponding to the end part of the pulley shaft in the downward convex state and a first elastic compensation sheet on the action surface of the limit wall section, so that on one hand, the impact side effect of the pulley shaft on the stop cover when the upward concave state is switched to the downward convex state is reduced, the limit effect of the stop cover on the pulley shaft is assisted, the combination stability between the stop cover and the spacing blocks can be ensured, the limit effect on the pulley shaft in the downward convex state is greatly enhanced by utilizing the integrally formed arc-shaped stop block and the limit wall section, on the other hand, the gap compensation effect can be achieved, and the influence on the normal work of next grounding caused by the floating of. In addition, the main wall surface and the limiting wall sections of the invention also help to position the sheave assembly in the correct working position.

3. The first elastic compensation sheet and the second elastic compensation sheet are respectively preferably rubber sheets with honeycomb structures, and the rubber sheets also have certain buffering and stabilizing effects on the premise of having the compression deformation capacity, so that the reinforcing effect is achieved.

4. The first pressure spring is preferably an elliptical spring, the middle parts of the opposite surfaces of the isolating blocks on the front side and the rear side of the first pressure spring are respectively provided with an arc vertical groove, and the top walls of the wheel shaft bearing grooves on the left side and the right side are downwards protruded relative to the top wall of the pressure spring mounting groove to form blocking bodies on the left side and the right side of the second pressure spring, so that the first pressure spring can be ensured to be only axially changed from top to bottom without inclination or translocation all the time in the multiple compression-rebound reciprocating process, the installation position of the pulley assembly can be rapidly and smoothly adjusted, the service life is prolonged, and the maintenance cost.

5. The bottom of the pulley seat is also connected with a sliding cover seat, a sliding cover is matched on the sliding cover seat in a sliding way, and when the pulley assembly is retracted into the pulley seat, the sliding cover moves backwards and covers the pulley groove, so that the use safety can be ensured, and the safety accident caused by the careless downward jumping of the pulley assembly when the pulley assembly is used as a flat shoe can be prevented; because the first spout width of the wheel groove department is bigger than the current product because of the lower wall face is protruding again, be equipped with protruding grain on the first spout of wheel groove department, be equipped with on the sliding closure corresponding face with protruding grain matched with detain the hole, so contract when using as the flat shoes at last the knot hole of sliding closure and protruding grain lock and can strengthen the stability of sliding closure encapsulated situation for the sliding closure can not run wantonly, further takes precautions against when using as the flat shoes that pulley assembly jumps down and takes place the incident carelessly.

Drawings

Fig. 1 is a schematic view of the structure of the pulley apparatus of the present invention (the cover, the sliding cover, and the pulley assembly are not shown).

Fig. 2 is a cross-sectional view of the pulley apparatus in a retracted state of the pulley assembly of the present invention.

Fig. 3 is a cross-sectional view of the pulley apparatus in a downward-convex state of the pulley assembly according to the present invention.

FIG. 4 is a schematic view of the outer wall of the wheel well of the present invention.

Fig. 5 is a schematic view of a matching structure between the pulley shaft and two spacers in a downward convex state according to the present invention.

Fig. 6 is a schematic view of the pulley assembly of the present invention.

FIG. 7 is a schematic view of the U-shaped stop lever of the present invention.

FIG. 8 is a schematic view of the structure of the blocking cover of the present invention.

FIG. 9 is a schematic view of the bottom structure of the walking shoe sole of the present invention.

FIG. 10 is a schematic view of the top surface structure of the walking shoe sole of the present invention.

FIG. 11 is a schematic view showing the bottom structure of the sole of the skate of the present invention.

Fig. 12 is a rear view of the front wheel assembly of the present invention.

Fig. 13 is a side view of the front wheel assembly of the present invention.

FIG. 14 is a schematic view of the front wheel assembly of the present invention.

Description of reference numerals:

10. a pulley seat; 12. a wheel groove; 121. a main wall surface; 122. a lower wall surface; 124. a limiting wall section; 125. a first elastic compensation sheet; 126. convex particles; 13. a pair of jacks; 14. a blocking cover; 15. an isolation block; 16. a first pressure spring; 17. an arc-shaped stop block; 18. a second elastic compensation sheet; 20. a sheave assembly; 21. a pulley shaft; 22. a pulley body; 30. a U-shaped stop lever; 31. a connecting plate; 32. a second pressure spring; 41. a sliding cover seat; 42. a slide chamber; 43. a sliding cover; 44. connecting the table top; 51. a front wheel housing; 52. a front wheel assembly; 100. a pulley device; 101. a compressed spring mounting groove; 102. a wheel axle receiving groove; 140. a reinforcing block; 141. a second chute; 200. a sole body; 201. a pressing block; 211. reducing the diameter ring; 212. a diameter expanding section; 213. a clamp spring; 500. a front wheel device; 511. an open wheel cavity; 512. a shaft cavity; 513. a fastening groove; 521. a front wheel axle; 522. a front wheel body.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which: