Child playground fence assembly support tool

By using hot-melt processing technology for assembling and supporting fixtures for children's playground fences, the problems of material waste and reduced impact strength in existing technologies have been solved, achieving material-free processing and high-efficiency production.

CN116551998BActive Publication Date: 2025-10-17YONGLANG GRP
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Patent Information

Application Number
CN202310431693.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-19
Publication Date
2025-10-17
Estimated Expiration
2043-04-19

AI Technical Summary

Technical Problem

The existing processing process of children's playground fences requires milling machines and punching machines, which leads to material waste and reduces the impact resistance of the railings.

Method used

A children's playground fence assembly support fixture is adopted. The circular tube made of copper is processed with screw holes and flat surfaces by hot melting. Combined with air cooling and liquid mist cooling technology, the process can be completed without material reduction.

Benefits of technology

This technology enables the machining of screw holes and flat surfaces on round tubes without reducing impact resistance, thereby improving machining efficiency and material utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a children's playground fence assembly support tool, which comprises a chassis, a support, a lifting mechanism, a double-head cylinder, a clamping plate and a hot plate, the chassis is arranged below the support, the lifting mechanism is arranged on the support, the double-head cylinder is arranged on the lifting mechanism, the cylinder rod of the double-head cylinder is provided with the clamping plate, the clamping plate has two pieces, the two clamping plates are in parallel and do not contact, the hot plate is arranged on each clamping plate, the hot plate is provided with a hanging column, the hanging column is perpendicular to the hot plate, the hanging column is in the shape of a circular truncated cone, the chassis is provided with a support groove, and the support groove is in the shape of half a Chinese character 'kou'. The tool has the following beneficial effects: when the plastic round pipe is processed, the threaded hole and the plane can be processed on the round pipe in the way of hot melting and solidification, so that the material of the round pipe is not reduced, and the impact strength of the whole round pipe is not reduced after processing.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of children's playground equipment, in particular to a children's playground fence assembly support tool. BACKGROUND

[0002] The safety fence is a commonly used tool in the children's playground at present, and the structure of all the fences at present is generally shown in the patent announcement document CN304038666S. The rail of the fence of this structure is generally in a cylindrical shape, and the rail is generally made of plastic. Due to the lively and active character of children, in order to reduce the pain of children colliding with the rail, most manufacturers currently use linear low-density polyethylene to manufacture the rail. The rail and the rail are connected together to form a fence, and a connecting buckle shown in the patent announcement document CN216197107U is needed. Since one end of the second connecting sleeve (the serial number of the figure mark in the document is 2) is in a planar shape, and the one end of the second connecting sleeve is fixed with the rail by a bolt (or a screw), in order to make the cylindrical rail fit together with the connecting buckle, it is necessary to first process part of the wall surface of the rail into a planar shape, and to open a screw hole on the wall of the rail. The entire processing process needs to use a milling machine and a punch, and a large amount of material will be wasted in the punching and milling process. SUMMARY

[0003] The present application proposes a children's playground fence assembly support tool aiming at the above problems.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A children's playground fence assembly support tool, comprising a chassis, a support, a lifting mechanism, a double-head cylinder, a clamping plate and a hot plate, the chassis is arranged below the support, the lifting mechanism is arranged on the support, the double-head cylinder is arranged on the lifting mechanism, the cylinder rod of the double-head cylinder is provided with a clamping plate, the clamping plate has two pieces, and the two clamping plates are in a parallel and non-contact state. Each clamping plate is provided with a hot plate, the hot plate is provided with a hanging column, the hanging column is perpendicular to the hot plate, the hanging column is in a circular truncated cone shape, the chassis is provided with a support groove, and the support groove is in a half mouth shape.

[0006] The working principle of the tool is as follows: firstly, the circular tube (made of linear low-density polyethylene) is placed in the supporting groove and clamped in the supporting groove to ensure that the circular tube does not rotate in the supporting groove, then the flat plate with the circular platform cylinder is tightly sleeved on the hot plate, the circular platform cylinder is sleeved on the hanging rod, the size of the circular platform cylinder is larger than the size of the hanging rod, then the hot plate (provided with a heating element) generates heat, and the two parallel hot plates start to move closer to each other under the action of the double-acting cylinder, since the flat plate is in a heated state, the circular tube will melt and the circular platform cylinder will be embedded in the circular tube, and part of the circular wall of the circular tube will be extruded into a flat surface, when the circular platform cylinder is completely embedded in the circular tube, the heating element on the hot plate stops heating, and after the molten part of the circular tube solidifies again (the flat plate will be adhered to the circular tube), the cylinder rod of the double-acting cylinder is elongated, since the size of the circular platform cylinder is larger than the size of the hanging rod (i.e. the hanging rod is not clamped in the circular platform cylinder), the hot plate and the flat plate can be smoothly separated.

[0007] In the scheme, the flat plate and the circular platform cylinder are integrally formed by stamping, the thickness of the wall of the circular platform cylinder is less than the thickness of the flat plate, the circular platform cylinder made of red copper has good softness, and the current screws are generally made of carbon steel or stainless steel, so the hardness of the screw is much greater than the hardness of the circular platform cylinder, so the circular platform cylinder can be directly used as a screw hole. When the screw is screwed into the circular platform cylinder, it will automatically extrude a thread on the inner wall of the circular platform cylinder.

[0008] In summary, when the plastic (linear low-density polyethylene) circular tube is processed, the tool can process a screw hole and a flat surface on the circular tube by hot melting and solidification, realizing non-material reduction processing of the circular tube, and the impact strength of the whole circular tube will not be reduced after processing.

[0009] Optionally, the bottom of the supporting groove is provided with a soft rubber block.

[0010] The soft rubber block is provided to increase the friction between the circular tube and the bottom supporting groove, so that the circular tube and the bottom supporting groove are less likely to slide relative to each other

[0011] Optionally, the bottom frame is provided with an air pipe, and the air pipe is provided with an air hole.

[0012] The air pipe is connected with the air blower, so that when the circular tube needs to be cooled after heating, the air blower can draw air through the air pipe to accelerate the flow of gas around the circular tube, so that the molten part of the circular tube can quickly solidify again.

[0013] Optionally, the frame, the first moving motor, the second moving motor, the first rack strip and the second rack strip are further included, the frame is slidably arranged on the frame, the first moving motor is arranged on the frame, the first rack strip is arranged on the support, the gear on the first moving motor is matched with the first rack strip, the second rack strip is arranged on the frame, the second moving motor is arranged on the lifting mechanism, the gear on the second moving motor is matched with the second rack strip, and the second rack strip is perpendicular to the first rack strip.

[0014] Specifically, the first rack strip and the second rack strip are perpendicular, when the first moving motor works, the frame moves along the first rack strip, and when the second moving motor works, the lifting mechanism moves along the second rack strip, so that the first moving motor and the second moving motor can drive the lifting mechanism to move in the longitudinal direction and the transverse direction.

[0015] Optionally, the support is provided with the first sliding rail, the frame is provided with the second sliding rail, the first sliding rail is perpendicular to the second sliding rail, the frame is slidably matched with the first sliding rail, and the lifting mechanism is slidably matched with the second sliding rail.

[0016] The first sliding rail and the second sliding rail are arranged to improve the movement stability of the frame and the lifting mechanism.

[0017] Optionally, the lifting mechanism includes a bottom plate, a lifting motor and a lifting rod, the lifting rod is slidably arranged on the bottom plate, the lifting motor is matched with the lifting rod, and the lifting motor is arranged on the bottom plate.

[0018] Specifically, the bottom plate is slidably matched with the second sliding block, and the second moving motor is installed on the bottom plate.

[0019] Optionally, a screw rod is rotatably arranged on the bottom plate, a threaded sleeve is arranged on the base, the screw rod is matched with the threaded sleeve, the lifting motor is matched with the screw rod, the screw rod is matched with the lifting rod, and the screw rod is parallel to the lifting rod.

[0020] Specifically, the screw rod is perpendicular to the bottom plate, when the lifting motor rotates, the screw rod moves up and down, and the lifting rod and the screw rod are linked through the sheet plate, so that the lifting rod also moves up and down.

[0021] Optionally, the nozzle is further included and arranged on the bottom bracket.

[0022] Specifically, the nozzle is further connected with the liquid storage tank (the liquid can be water) through the pipeline, so that the nozzle can spray liquid mist around the circular pipe when needed, liquid vaporization is used to quickly absorb heat, so as to quickly cool the molten part of the circular pipe.

[0023] Optionally, a PTC heater is further included, and the PTC heater is arranged on the heat-attaching plate, and the PTC heater and the suspension column are respectively located on both sides of the heat-attaching plate.

[0024] Optionally, a flat plate is further included, on which a frustum cylinder is provided.

[0025] Specifically, the frustum cylinder and the flat plate are integrally formed by stamping a copper plate, and the thickness of the cylinder wall of the frustum cylinder is smaller than the thickness of the flat plate.

[0026] The beneficial effect of the present invention is that when processing a plastic round tube, screw holes and planes can be processed on the round tube by hot melting and solidification, thereby realizing non-reduced material processing of the round tube, and the impact strength of the entire round tube will not be reduced after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the assembly support tooling for children's playground fences;

[0028] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0029] Figure 3 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0030] Figure 4 yes Figure 1 The enlarged schematic diagram at C in the middle;

[0031] Figure 5 This is a schematic diagram of the working principle of the hot-stitching plate clamping the round tube.

[0032] The reference numerals in the figure are: 1. bracket; 2. frame; 3. base frame; 301. air duct; 302. air hole; 303. supporting groove; 304. soft rubber block; 4. lifting rod; 5. double-headed cylinder; 6. clamping plate; 7. hot-sticking plate; 8. PTC heater; 9. hanging rod; 10. screw; 11. lifting motor; 12. second moving motor; 13. second rack belt; 14. second slide rail; 15. first slide rail; 16. first rack belt; 17. bottom plate; 18. threaded sleeve; 19. nozzle; 20. plastic pipe; 21. flat plate; 2101. conical cylinder. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] As attached Figure 1 , Attachment Figure 2 , AttachmentFigure 3 And attached Figure 4 As shown, a children's playground fence assembly support tooling includes a base frame 3, a bracket 1, a lifting mechanism, a double-headed cylinder 5, a clamping plate 6 and a heat-sticking plate. The base frame 3 is arranged below the bracket 1, the lifting mechanism is arranged on the bracket 1, the double-headed cylinder is arranged on the lifting mechanism, and a clamping plate 6 is arranged on the cylinder rod of the double-headed cylinder. There are two clamping plates 6, and the two clamping plates 6 are in a parallel and non-contact state. A heat-sticking plate 7 is provided on each clamping plate 6, and a hanging column is provided on the heat-sticking plate 7. The hanging column is perpendicular to the heat-sticking plate 7 and is in a truncated cone shape. A supporting groove 303 is provided on the base frame 3, and the supporting groove 303 is in a half-mouth shape.

[0036] The working principle of this tooling is as follows: first, place the round tube (made of linear low-density polyethylene) in the supporting groove 303, and clamp the round tube in the supporting groove 303 to ensure that the round tube will not rotate in the supporting groove 303, and then put the flat plate 21 with the conical cylinder 2101 tightly on the hot-stick plate 7, wherein the conical cylinder 2101 is put on the hanging rod 9, and the size of the conical cylinder 2101 is larger than the size of the hanging rod 9, and then the hot-stick plate 7 (a heating element is provided on the plate) is heated, and under the action of the double-headed cylinder, the two parallel hot-stick plates 7 begin to move closer to each other. Plate 21 is in a heating state, so the round tube will melt and the conical cylinder 2101 will be embedded in the round tube, and part of the round wall of the round tube will be squeezed into a flat surface. When the conical cylinder 2101 is completely embedded in the round tube, the heating element on the heat-attaching plate 7 stops heating. After the melted part of the round tube solidifies again (the flat plate 21 will stick to the round tube), the cylinder rod of the double-headed cylinder extends. Since the size of the conical cylinder 2101 is larger than the size of the hanging rod 9 (that is, the hanging rod 9 is not clamped in the conical cylinder 2101), the heat-attaching plate 7 and the flat plate 21 can be separated smoothly. This process is shown in the attached figure. Figure 5 As shown, attached Figure 5 Only the hot plate on the right is drawn, while the hot plate on the left is not drawn.

[0037] Specifically, multiple rows of supporting grooves 303 are provided on the base frame 3, so that the base frame 3 can support multiple plastic round tubes.

[0038] In this embodiment, the flat plate 21 and the conical cylinder 2101 are integrally stamped from copper. The wall thickness of the conical cylinder 2101 is smaller than that of the flat plate 21. Conical cylinder 2101, made of copper, is inherently flexible. Current screws are typically made of carbon steel or stainless steel, making the screws much harder than conical cylinder 2101. Therefore, conical cylinder 2101 can be used directly as a screw hole. When the screw is screwed into conical cylinder 2101, it automatically creates threads on the inner wall of conical cylinder 2101.

[0039] In the scheme, in order to ensure the bonding strength of the circular truncated cone barrel 2101 and the circular tube, the outer wall of the circular truncated cone barrel 2101 is provided with threads, so that the bonding strength of the circular truncated cone barrel 2101 and the plastic circular tube can be improved, and at the same time, in order to avoid that the plastic is bonded to the suspension rod 9 during the melting process, one barrel opening of the circular truncated cone barrel 2101 is in a closed state. Since it is made of red copper material and has a relatively small thickness, a screw made of stainless steel can actually pierce the closed barrel opening of the circular truncated cone barrel 2101 during use.

[0040] In summary, when the plastic (linear low-density polyethylene) circular tube is processed, the tool can process a threaded hole and a flat surface on the circular tube by hot melting and solidification, realizes non-material-reducing processing of the circular tube, and does not reduce the impact strength of the whole circular tube after processing.

[0041] In the scheme, the circular truncated cone barrel 2101 can pierce the wall of the raw material circular tube, or can not pierce the wall of the plastic circular tube.

[0042] As shown in Figs. 1, 2, 3, 4 and 5, a soft rubber block 304 is arranged at the bottom of the supporting groove 303. Figure 1 Figure 2 Figure 3 Figure 4 The soft rubber block 304 is arranged to increase the friction between the circular tube and the bottom supporting groove, so that the circular tube and the bottom supporting groove are less likely to slide relative to each other.

[0043] The soft rubber block 304 is arranged to increase the friction between the circular tube and the bottom supporting groove, so that the circular tube and the bottom supporting groove are less likely to slide relative to each other.

[0044] As shown in Figs. 1, 2, 3, 4 and 5, a soft rubber block 304 is arranged at the bottom of the supporting groove 303. Figure 1 Figure 2 Figure 3 Figure 4 The air pipe 301 is arranged on the bottom frame 3, and the air pipe 301 is provided with air holes 302.

[0045] The air pipe 301 is connected with the air blower, so that when the circular tube needs to be cooled after being heated, the air blower can draw air through the air pipe 301 to accelerate the flow of the gas around the circular tube, so that the molten part of the circular tube can be quickly solidified.

[0046] As shown in Figs. 1, 2, 3, 4 and 5, a soft rubber block 304 is arranged at the bottom of the supporting groove 303. Figure 1 Figure 2 Figure 3 Figure 4 ​​​​​​​​​As shown, it also includes a frame 2, a first movable motor, a second movable motor 12, a first rack belt 16 and a second rack belt 13. The frame 2 is slidably set on the frame 2, the first movable motor is set on the frame 2, the first rack belt 16 is set on the bracket 1, the gear on the first movable motor is matched with the first rack belt 16, the second rack belt 13 is set on the frame 2, the second movable motor 12 is set on the lifting mechanism, the gear on the second movable motor 12 is matched with the second rack belt 13, and the second rack belt 13 is perpendicular to the first rack belt 16.

[0047] Specifically, the first rack belt 16 and the second rack belt 13 are in a vertical state. When the first movable motor is working, the frame 2 moves along the first rack belt 16, and when the second movable motor 12 is working, the lifting mechanism moves along the second rack belt 13, so the first movable motor and the second movable motor 12 can drive the lifting mechanism to move in both the longitudinal and transverse directions.

[0048] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, a first slide rail 15 is provided on the bracket 1, and a second slide rail 14 is provided on the frame 2. The first slide rail 15 is perpendicular to the second slide rail 14. The frame 2 and the first slide rail 15 are slidably matched together, and the lifting mechanism and the second slide rail 14 are slidably matched together.

[0049] The first slide rail 15 and the second slide rail 14 are provided to improve the movement stability of the frame 2 and the lifting mechanism.

[0050] In this solution, the lifting mechanism can move longitudinally and transversely, so that the relative position between the lifting mechanism and the base frame 3 can be adjusted, and the round tube on the base can be better clamped.

[0051] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the lifting mechanism includes a base plate 17 , a lifting motor 11 and a lifting rod 4 . The lifting rod 4 is slidably arranged on the base plate 17 . The lifting motor 11 cooperates with the lifting rod 4 , and the lifting motor 11 is arranged on the base plate 17 .

[0052] Specifically, the bottom plate 17 is slidably matched with the second sliding block, and the second moving motor 12 is installed on the bottom plate 17 .

[0053] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4As shown, a screw 10 is rotatably provided on the bottom plate 17, a threaded sleeve 18 is provided on the base, the screw 10 and the threaded sleeve 18 cooperate together, the lifting motor 11 cooperates with the screw 10, the screw 10 cooperates with the lifting rod 4, and the screw 10 is parallel to the lifting rod 4.

[0054] Specifically, the screw rod 10 is perpendicular to the base plate 17. When the lifting motor 11 rotates, it drives the screw rod 10 to move up and down. The lifting rod 4 is linked to the screw rod 10 through the plate, so the lifting rod 4 will also move up and down. When the lifting rod 4 descends, the double-headed cylinder moves closer to the base frame 3. When the lifting rod 4 rises, the distance between the double-headed cylinder and the base frame 3 increases.

[0055] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, it also includes a nozzle 19, which is arranged on the base frame 3.

[0056] Specifically, the nozzle 19 is connected to a liquid storage tank (the liquid can be water) through a pipe. This is so that when needed, the nozzle 19 can spray liquid mist around the circular tube, using the liquid vaporization to quickly absorb heat, thereby achieving the purpose of quickly cooling the molten portion of the circular tube. In addition, the air duct can be exhausted while the nozzle can spray liquid mist, so that the air temperature near the circular tube is quickly reduced.

[0057] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, it also includes a PTC heater 8, which is arranged on the heat-attaching plate 7, and the PTC heater 8 and the suspension column are respectively located on both sides of the heat-attaching plate 7.

[0058] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, it also includes a flat plate 21, on which a frustum cylinder 2101 is provided.

[0059] Specifically, the frustum tube 2101 and the flat plate 21 are integrally formed by stamping a copper plate, and the thickness of the tube wall of the frustum tube 2101 is smaller than the thickness of the flat plate 21 .

[0060] In this embodiment, the heat-dissipating plate is a metal plate, and the clamping plate is also a metal plate, but the heat-dissipating plate has better thermal conductivity than the clamping plate.

[0061] Example 2

[0062] A children's playground fence railing, as shown in the following Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 As shown, the tooling shown in Example 1 was used for preparation.

[0063] Example 3

[0064] A children's playground safety fence is constructed using the rail splicing as shown in Example 2.

[0065] The above only describes the preferred embodiments of the present application, and does not limit the patent protection scope of the present application. Any equivalent transformation of the content of the present application specification, direct or indirect application in other related technical fields, are also included in the protection scope of the present application.

Claims

1. A children's playground fence assembly support tool, characterized in that: It includes a base frame, a bracket, a lifting mechanism, a double-headed cylinder, a clamping plate and a heat-attaching plate, the base frame is arranged below the bracket, the lifting mechanism is arranged on the bracket, the double-headed cylinder is arranged on the lifting mechanism, the cylinder rod of the double-headed cylinder is provided with a clamping plate, there are two clamping plates, the two clamping plates are in a parallel and non-contact state, each clamping plate is provided with the heat-attaching plate, the heat-attaching plate is provided with a hanging column, the hanging column is perpendicular to the heat-attaching plate, the hanging column is in a frustum shape, the base frame is provided with a supporting groove, and the supporting groove is in a half-mouth shape; A linear low-density polyethylene round tube is placed in a supporting groove. The round tube will not rotate in the supporting groove. Then a flat plate with a conical cylinder is placed tightly on the hot-stick plate, where the conical cylinder is placed on the hanging rod. The hot-stick plate is heated. Under the action of the double-headed cylinder, the two parallel hot-stick plates begin to move closer to each other. The round tube will melt and the conical cylinder will be embedded in the round tube, and part of the circular wall of the round tube will be squeezed into a flat shape. When the conical cylinder is completely embedded in the round tube, the heating element on the hot-stick plate stops heating. After the molten part of the round tube re-solidifies, the flat plate will stick to the round tube, and the hot-stick plate and the flat plate will be smoothly separated.

2. The children's playground fence assembly support tooling according to claim 1, characterized in that: A soft rubber block is provided at the bottom of the supporting groove.

3. The children's playground fence assembly support tooling according to claim 1, characterized in that: An air duct is arranged on the base frame, and air holes are opened on the pipe wall of the air duct.

4. The children's playground fence assembly support tooling according to claim 1, characterized in that: It also includes a frame, a first movable motor, a second movable motor, a first rack belt and a second rack belt, the frame is slidably set on the frame, the first movable motor is set on the frame, the first rack belt is set on the bracket, the gear on the first movable motor is matched with the first rack belt, the second rack belt is set on the frame, the second movable motor is set on the lifting mechanism, the gear on the second movable motor is matched with the second rack belt, and the second rack belt is perpendicular to the first rack belt.

5. The children's playground fence assembly support tooling according to claim 4, characterized in that: The bracket is provided with a first slide rail, the frame is provided with a second slide rail, the first slide rail is perpendicular to the second slide rail, the frame and the first slide rail are slidably matched together, and the lifting mechanism and the second slide rail are slidably matched together.

6. The children's playground fence assembly support tooling according to claim 1, characterized in that: The lifting mechanism includes a base plate, a lifting motor and a lifting rod. The lifting rod is slidably arranged on the base plate. The lifting motor cooperates with the lifting rod, and the lifting motor is arranged on the base plate.

7. The children's playground fence assembly support tooling according to claim 6, characterized in that: A screw is rotatably provided on the bottom plate, a threaded sleeve is provided on the base, the screw and the threaded sleeve cooperate together, the lifting motor cooperates with the screw, the screw cooperates with the lifting rod, and the screw is parallel to the lifting rod.

8. The children's playground fence assembly support tool as claimed in claim 1, characterized in that: It also includes a nozzle, which is arranged on the base frame.

9. The children's playground fence assembly support tool as claimed in claim 1, characterized in that: It also includes a PTC heater, which is arranged on the heat-attaching plate, and the PTC heater and the suspension column are respectively located on both sides of the heat-attaching plate.

Citation Information

Patent Citations

  • Fence connecting buckle and fence

    CN216197107U

  • fence

    CN304038666S

  • Fence forming device and method

    CN115229372A

  • Hot rolling device for manufacturing nickel alloy square tube

    CN208944831U

  • GRC decorative plate carrying device

    CN217322061U