Disclosed is a disc buckle type of a pipe cleaning device clamping device.

Abstract

This invention provides a clamping device for a disc-lock type scaffold pipe cleaning equipment, comprising: a clamp body, the clamp body having a cylindrical structure, and the cross-section of the cylindrical structure being larger than the cross-section of the horizontal bar and the vertical bar of the disc-lock type scaffold pipe; a rotating mechanism externally connected to one end of the clamp body, and a horizontal bar limiting part formed at the other end of the clamp body, allowing the pipe end of the horizontal bar to be inserted into the cylinder of the clamp body, with a pin engaging with the horizontal bar limiting part; a vertical bar limiting part formed on the clamp body, allowing the pipe end of the vertical bar to be inserted into the cylinder of the clamp body and connected and fixed to the clamp body through the vertical bar limiting part. This invention relates to the field of building equipment maintenance technology and can solve the problems of inconvenient clamping, inefficiency, and low turnover rate of existing equipment clamping fixtures.

Description

Technical Field

[0001] This invention relates to the field of building equipment maintenance technology, and in particular to a clamping device for a disc-type scaffold pipe cleaning equipment. Background Technology

[0002] Almost all construction projects use scaffolding. Currently, the mainstream type on the market is the disc-lock scaffolding, which consists of horizontal and vertical poles. The ends of the horizontal and vertical poles have different structures to ensure quick connection and erection of the scaffolding. The horizontal pole has a round tube in the middle and slotted square pins at both ends. The pins are movable but cannot be completely removed. The vertical pole is a round tube with multiple perforated discs in the middle. One end extends from a 48mm outer diameter round tube, and the other end is a larger, nestable 48mm inner diameter tube. During on-site use, the square pins of the horizontal poles connect to the discs of the vertical poles.

[0003] After the disc-lock steel pipe scaffolding is used in construction, concrete will adhere to the scaffold pipes. Before reuse, it needs to be inspected for specifications and standards, and the residual concrete needs to be cleaned. Currently, this is mainly done manually by shoveling and hammering. Manual cleaning with a scraper and hammering is laborious and inefficient. Existing disc-lock scaffold pipe cleaning equipment (hereinafter referred to as the equipment) can improve the cleanliness and efficiency of the scaffold pipes. The equipment's clamps mainly consist of perforated round pipes and flat pin holes at the ends. When clamping the horizontal bars, the flat pin holes simulate the pin holes of the vertical bar discs; after inserting the pins, the horizontal bars are fixed. To prevent the pins from flying out during rotation, they need to be hammered to increase the wedge clamping force between the mounting surfaces. When clamping the vertical bars, the end of the vertical bar is inserted into the clamp, and bolts are passed through the holes in the vertical bar and the clamp. The other end needs to be locked with a nut.

[0004] Existing equipment is inconvenient for clamping horizontal and vertical poles, with multiple clamping and placement steps and a long time required for each operation, affecting the cleaning efficiency of disc-lock scaffolding pipes. Furthermore, the clamping fixtures are all derived from the shape of the horizontal or vertical poles to be cleaned, resulting in low turnover rate. Therefore, there is a need to provide a clamping device for disc-lock scaffolding pipe cleaning equipment that can solve the problems of inconvenient clamping, inefficiency, and low turnover rate of existing equipment clamping fixtures. Summary of the Invention

[0005] The purpose of this invention is to provide a clamping device for a disc-type scaffold pipe cleaning equipment, which can solve the problems of inconvenient clamping, low efficiency, and low turnover rate of existing equipment clamping fixtures.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] A clamping device for a disc-lock type scaffold pipe cleaning equipment includes: a clamp body, the clamp body having a cylindrical structure, and the cross-section of the cylindrical structure being larger than the cross-section of the horizontal bar and the vertical bar of the disc-lock type scaffold pipe; a rotating mechanism externally connected to one end of the clamp body, and a horizontal bar limiting part formed at the other end of the clamp body, allowing the pipe end of the horizontal bar to be inserted into the cylinder of the clamp body, and a pin being limited and engaged with the horizontal bar limiting part; a vertical bar limiting part formed on the clamp body, allowing the pipe end of the vertical bar to be inserted into the cylinder of the clamp body and connected and fixed to the clamp body through the vertical bar limiting part.

[0008] The fixture body is provided with a pin retaining ring, which includes a limiting plate sleeved on the fixture body and a retaining ring set at the edge of the limiting plate. The retaining ring is circumferentially surrounding the outside of the pin of the crossbar.

[0009] One end of the fixture body is provided with a fixed seat, and the fixture body is externally connected to a rotary mechanism through the fixed seat.

[0010] The crossbar limiting part includes several limiting hooks, which are spaced apart along the other edge of the clamp body; a clamping gap is formed between two adjacent limiting hooks for inserting a pin during clamping.

[0011] Each of the aforementioned limiting hooks includes a hook shank and a hook bottom. One end of the hook shank is connected to the other end of the clamp body's cylindrical wall, and the other end of the hook shank is connected to one end of the hook bottom to form an L-shaped structure. A hook gate is formed between the clamp body, the hook shank, and the hook bottom, and a pin is clamped inside the hook gate.

[0012] The other end of the bottom of the previous limiting hook extends to one end of the bottom of the next limiting hook, and a clamping gap is formed between the other end of the previous hook bottom and one end of the next hook bottom.

[0013] The other end of the hook bottom has a guide slope on the side away from the clamp body, and the guide slope is set facing the clamping gap.

[0014] The aforementioned limiting hooks and the clamp body are located within the same cylindrical surface, and the hook bottoms of the limiting hooks are located within the same circumference of the cylindrical body.

[0015] The pole limiting part includes a limiting hole and a limiting pin; several limiting holes are formed on the cylindrical wall of the clamp body, and the end hole on the pole can be aligned with the limiting hole, so that the limiting pin can be movably inserted into the end hole and the limiting hole, and lock the clamp body and the pole together.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Because the present invention has a crossbar limiting part, and four limiting hooks spaced at 90° intervals are set, the tube end of the crossbar can be inserted into the cylinder of the clamp body at any of the four angles along the guide slope, which improves the clamping efficiency of the crossbar, makes the clamping steps of the crossbar more convenient and efficient, and makes disassembly more convenient, which is conducive to improving the cleaning efficiency and turnover rate of the cleaning equipment for the crossbar.

[0018] 2. Because the present invention has a crossbar limiting part, the crossbar is limited in the radial and axial directions by four limiting hooks. The hook handle pushes the pin to rotate, which prevents the crossbar from slipping during the cleaning process. The bottom of the hook abuts against the pin to prevent the crossbar from coming out radially, ensuring the radial rotation of the crossbar and the stability of the clamping. No other tooling is required, and the cost is low.

[0019] 3. Because the present invention has a pole limiting part, the pole and the clamp body are connected into a whole by aligning the limiting hole and the end hole and inserting the limiting pin in the limiting hole and the end hole. This makes the pole clamping process more convenient and efficient, and the disassembly is also more convenient. It is beneficial to improve the cleaning efficiency and turnover rate of the pole by the cleaning equipment. Attached Figure Description

[0020] The above and other objects, features and advantages of this disclosure will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0021] Figure 1 This is a perspective view of one side of the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0022] Figure 2 This is a perspective view of the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention from another side.

[0023] Figure 3 This is a front view of the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0024] Figure 4 This is a side view of the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0025] Figure 5 This is a schematic diagram of the clamping crossbar structure of the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0026] Figure 6 This is an exploded view of the clamping crossbar of the clamping device of the disc-type scaffolding pipe cleaning equipment of the present invention;

[0027] Figure 7 This is a schematic diagram of the clamping device for the scaffolding pipe cleaning equipment of the present invention, which clamps the upright pole.

[0028] Figure 8 This is an exploded view of the clamping device for the scaffolding pipe cleaning equipment of the present invention, which clamps the uprights.

[0029] Figure 9 This is a perspective view of the clamping body in the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0030] Figure 10 This is a front view of the clamp body in the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0031] Figure 11 This is a perspective view of the pin retaining ring in the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention;

[0032] Figure 12 This is a side view of the pin retaining ring in the clamping device of the disc-type scaffold pipe cleaning equipment of the present invention.

[0033] In the figure, 1 is the main body of the clamp, 101 is the horizontal bar limiting part, 1011 is the hook handle, 1012 is the hook bottom, 1013 is the hook door, 1014 is the guide slope, 102 is the vertical bar limiting part, 1021 is the limiting hole, 1022 is the limiting pin, 103 is the clamping gap, 201 is the horizontal bar, 202 is the vertical bar, 203 is the pin, 204 is the end hole, 301 is the limiting plate, 302 is the retaining ring, and 4 is the fixing seat. Detailed Implementation

[0034] The clamping device for the disc-lock type scaffolding pipe cleaning equipment proposed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0035] Please see the appendix Figure 1 To be continued Figure 8 A clamping device for a disc-lock type scaffold pipe cleaning equipment includes a clamp body 1, which has a cylindrical structure and the cross-section of the cylindrical structure is larger than the cross-section of the crossbar 201 and the vertical bar 202 of the disc-lock type scaffold pipe. One end of the clamp body 1 is externally connected to a rotary mechanism, and the other end of the clamp body 1 has a crossbar limiting part 101, which allows the pipe end of the crossbar 201 to be inserted into the cylinder of the clamp body 1, and a pin 203 is limited and engaged with the crossbar limiting part 101. A vertical bar limiting part 102 is formed on the clamp body 1, which allows the pipe end of the vertical bar 202 to be inserted into the cylinder of the clamp body 1 and connected and fixed to the clamp body 1 through the vertical bar limiting part 102.

[0036] The cylindrical structure of the clamp body 1 allows for the insertion of the horizontal bar 201 and vertical bar 202 of the disc-lock scaffolding tube, ensuring a secure clamping effect. The clamp body 1 can adopt a cylindrical, square, or polygonal cylindrical structure, as long as the internal space meets the insertion requirements of the horizontal bar 201 and vertical bar 202 to be cleaned. The clamp body 1 is preferably cylindrical, which facilitates material sourcing and manufacturing; the accompanying drawings of this invention all use a cylindrical clamp body 1 as an example.

[0037] When clamping the crossbar 201, the pin 203 of the crossbar 201 can be limited by the crossbar limiting part 201 to prevent the crossbar 201 from jumping off during the cleaning process. When clamping the upright 202, the upright 202 is limited by the upright limiting part 102 to prevent the upright 202 from coming off during the cleaning process.

[0038] Please see the appendix Figure 11 and attached Figure 12 The clamp body 1 is provided with a pin retaining ring, which includes a limiting plate 301 sleeved on the clamp body 1 and a retaining ring 302 provided at the edge of the limiting plate 301. The retaining ring 302 is circumferentially surrounded on the outside of the pin 203 of the crossbar 201.

[0039] Preferably, the middle part of the limiting plate 301 may be provided with a through hole that matches the outer diameter of the clamp body 1, for installing the pin retaining ring onto the clamp body 1, which can be fixed by welding or other methods. The limiting plate 301 is offset from the upright limiting part 102 during installation to prevent interference with the normal use of the upright limiting part 102.

[0040] The limiting plate 301 and the retaining ring 302 protect the connection between the pin 203 and the crossbar limiting part 201, effectively preventing the pin 203 from coming out during cleaning. The circumferential encirclement of the retaining ring 203 prevents the pin 203 from coming out in any radial direction. Since the maximum rotation radius of the pin 203 when it is pulled out of the pin hole of the crossbar 201 can reach 300mm, the inner diameter of the retaining ring 203 and the diameter of the limiting plate 301 can be slightly larger than 300mm to ensure the protective effect against the pin 203 coming out.

[0041] Please see the appendix Figure 1 To be continued Figure 3 and attached Figure 5 To be continued Figure 8 The clamp body 1 is provided with a fixed seat 4 at one end, and the clamp body 1 is externally connected to a rotary mechanism through the fixed seat 4.

[0042] The fixed seat 4 is used to connect with the standard coupling of the rotary mechanism, so that the clamp body 1 and the crossbar 201 / vertical bar 202 can be rotated through the rotary mechanism during the cleaning process. Preferably, the fixed seat 4 can be in the form of a flange, a disc with a keyway shaft hole, etc., and welded to the end of the clamp body 1. Alternatively, the fixed seat 4 can be selected according to the actual connection requirements.

[0043] Please see the appendix Figure 2 To be continued Figure 6 Appendix Figure 9 and attached Figure 10 The crossbar limiting part 101 includes a plurality of limiting hooks, which are spaced apart along the other edge of the clamp body 1; a clamping gap 103 is formed between two adjacent limiting hooks for inserting the pin 203 during clamping.

[0044] Preferably, four limiting hooks can be provided, one at 90° intervals, so that the radial adjustment angle of the crossbar 201 during clamping is less than 45°. Several limiting hooks can be integrally formed with the fixture body 1 by mold or welded into a whole, which reduces costs.

[0045] After the rotary mechanism drives the clamp body 1 and the crossbar 201 to start moving, the radial constraint of the pin 203 of the crossbar 201 by the limiting hook is small, and the crossbar 201 can still move within the clamp body 1. During the rotation, the crossbar 201 and the clamp body 1 can dynamically achieve the effect of concentricity, avoiding the crossbar 201 jumping during the cleaning process.

[0046] Please see the appendix Figure 2 To be continued Figure 6 Appendix Figure 9 and attached Figure 10 Each of the aforementioned limiting hooks includes a hook shank 1011 and a hook base 1012. One end of the hook shank 1011 is connected to the other end of the cylindrical wall of the clamp body 1, and the other end of the hook shank 1011 is connected to one end of the hook base 1012 to form an L-shaped structure. A hook gate 1013 is formed between the clamp body 1, the hook shank 1011 and the hook base 1012, and a pin 203 is clamped in the hook gate 1013.

[0047] The hook shank 1011 is used to push the crossbar 201 to rotate radially. It has a certain strength, and the crossbar 201 can be pushed to rotate radially only when the hook shank 1011 contacts one side of the pin 203. The hook bottom 1012 is used to prevent the crossbar 201 from axially disengaging.

[0048] The width of the hook gate 1013 is slightly larger than the width of the pin 203. By reasonably setting the width of the hook gate 1013, each time the crossbar 201 is clamped, the crossbar 201 can be pushed to the bottom of the hook gate 1013 along the axis without much adjustment.

[0049] Please see the appendix Figure 2 To be continued Figure 6 Appendix Figure 9 and attached Figure 10 The other end of the hook bottom 1012 of the previous limiting hook extends to one end of the hook bottom 1012 of the next limiting hook, and a clamping gap 103 is formed between the other end of the previous hook bottom 1012 and one end of the next hook bottom 1012.

[0050] Preferably, the limit hooks can be arranged clockwise or counterclockwise, but the arrangement direction of all limit hooks should be the same, which can be determined according to the needs of the cleaning equipment.

[0051] Please see the appendix Figure 2 Appendix Figure 5 Appendix Figure 6 Appendix Figure 9 and attached Figure 10 The other end of the hook bottom 1012 is provided with a guide slope 1014 on the side away from the clamp body 1, and the guide slope 1014 is positioned facing the clamping gap 103.

[0052] The guide ramp 1014 serves as a guide, facilitating the efficient clamping of the crossbar 201.

[0053] Please see the appendix Figure 9 The plurality of limiting hooks and the clamp body 1 are located in the same cylindrical surface, and the hook bottoms 1012 of the plurality of limiting hooks are located in the same circumference of the cylindrical body, ensuring the stability of the force on each limiting hook when the clamp body 1 rotates.

[0054] Please see the appendix Figure 8 and attached Figure 9 The pole limiting part 102 includes a limiting hole 1021 and a limiting pin 1022; a plurality of limiting holes 1021 are formed on the cylindrical wall of the clamp body 1, and the end hole 204 on the pole 202 can be aligned with the limiting hole 1021, so that the limiting pin 1022 is movably inserted into the end hole 204 and the limiting hole 1021, and locks the clamp body 1 and the pole 202.

[0055] Preferably, two sets of limiting holes 1021 are provided, with two holes symmetrically arranged in each set, that is, one hole is provided at 90° intervals, for aligning with the end hole 204 on the upright 202 and inserting the limiting pin 1022. By adjusting less than 90° at any limiting hole 1021, any end hole 204 can be aligned with any limiting hole 1021 and the limiting pin 1022 can be inserted, which facilitates the clamping of the upright 201.

[0056] Preferably, the limit pin 1022 can be a spring pin, indexing pin, spring indexing pin, bolt or other pin structure, which can be selected according to the actual connection requirements.

[0057] Please see the appendix Figure 5and attached Figure 6 The method for clamping the crossbar 201 using the fixture of the present invention is as follows:

[0058] Rotate the crossbar 201 so that the larger end of the pin 203 is on top and the smaller end is on the bottom. At this time, the pin 203 will automatically fall down under its own weight and be inserted into the pin hole of the crossbar 201. Guided by the guide slope 1014, insert the pin 203 of the crossbar 201 into the cylinder of the clamp body 1 through the clamping gap 103. Push the pin 203 to the bottom of the clamping gap 103 along the axial direction of the clamp body 1 to complete the clamping of the crossbar 201. Then, start the cleaning equipment to carry out normal cleaning work.

[0059] During the rotation of the crossbar 201, when the pin 203 is inserted into the pin hole of the crossbar 201, the pin 203 and the clamp body 1 are in two-point contact through two limiting hooks. When the pin 203 is completely disengaged from the pin hole of the crossbar 201, the pin 203 and the clamp body 1 are in single-point contact through one limiting hook, thereby ensuring that the hook handle 1011 of the limiting hook can push the pin 203, thus causing the crossbar 201 to rotate radially. At the same time, during the radial rotation of the crossbar 201, the hook bottom 1012 abuts against the pin 203 to prevent the crossbar 201 from disengaging axially.

[0060] Please see the appendix Figure 7 and attached Figure 8 The method for clamping the upright 202 using the clamp of the present invention is as follows:

[0061] First, pull out the limiting pin 1022 inserted into the clamp body 1. Then, insert the tube end of the upright 202 into the cylinder of the clamp body 1 at any angle, and release the limiting pin 1022. Since the upright 202 has two end holes 204, it cannot be guaranteed that it will be aligned with the limiting hole 1021 when inserted at any angle. At this time, the limiting pin 1022 is likely not inserted into the end hole 204 of the upright 202.

[0062] Rotate the upright 202. Within a 180° rotation, the end hole 204 will align with the limiting hole 1021, allowing the limiting pin 1022 to be inserted into the end hole 204 and the limiting hole 1021, thus connecting the clamp body 1 and the upright 202 into a whole. Once the upright 202 is clamped, the cleaning equipment can be started for normal cleaning work.

[0063] The clamping device of the present invention is a single-sided clamping drive. It only requires the horizontal bar 201 or the vertical bar 202 to be inserted into the clamp body 1. It does not need to be adapted to scaffold pipes of different lengths (i.e., horizontal bar 201 and vertical bar 202). The clamping device of the present invention can be used for scaffold pipes of any length, and no additional tooling is required.

[0064] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A clamping device for a disc-lock type scaffold pipe cleaning equipment, characterized in that, include: The clamp body (1) has a cylindrical structure, and the cross-section of the cylindrical structure is larger than the cross-section of the horizontal bar (201) and the vertical bar (202) of the disc-lock scaffold tube. One end of the clamp body (1) is connected to a rotary mechanism, and the other end of the clamp body (1) has a horizontal bar limiting part (101) so that the tube end of the horizontal bar (201) can be inserted into the cylinder of the clamp body (1), and the pin (203) is limited and locked with the horizontal bar limiting part (101). A vertical bar limiting part (102) is formed on the clamp body (1) so that the tube end of the vertical bar (202) can be inserted into the cylinder of the clamp body (1) and connected and fixed to the clamp body (1) through the vertical bar limiting part (102). One end of the clamp body (1) is provided with a fixed seat (4), and the clamp body (1) is connected to a rotary mechanism through the fixed seat (4). The crossbar limiting part (101) includes a plurality of limiting hooks, which are spaced apart along the other edge of the clamp body (1); a clamping gap (103) is formed between two adjacent limiting hooks for inserting a pin (203) during clamping; each limiting hook includes a hook handle (1011) and a hook bottom (1012), one end of the hook handle (1011) is connected to the other end of the cylinder wall of the clamp body (1), and the other end of the hook handle (1011) is connected to one end of the hook bottom (1012) to form an L-shaped structure, and a hook gate (1013) is formed between the clamp body (1), the hook handle (1011) and the hook bottom (1012), and the pin (203) is clamped in the hook gate (1013); The pole limiting part (102) includes a limiting hole (1021) and a limiting pin (1022); a plurality of limiting holes (1021) are formed on the cylindrical wall of the clamp body (1), and the end hole (204) on the pole (202) can be aligned with the limiting hole (1021), so that the limiting pin (1022) can be movably inserted into the end hole (204) and the limiting hole (1021), and lock the clamp body (1) and the pole (202) in place.

2. The clamping device for the disc-type scaffold pipe cleaning equipment as described in claim 1, characterized in that, The fixture body (1) is provided with a pin retaining ring, which includes a limiting plate (301) sleeved on the fixture body (1) and a retaining ring (302) set at the edge of the limiting plate (301). The retaining ring (302) surrounds the outside of the pin (203) of the crossbar (201).

3. The clamping device for the disc-lock type scaffold pipe cleaning equipment as described in claim 1, characterized in that, The other end of the bottom of the previous limiting hook (1012) extends to one end of the bottom of the next limiting hook (1012), and a clamping gap (103) is formed between the other end of the previous hook bottom (1012) and one end of the next hook bottom (1012).

4. The clamping device for the disc-lock type scaffolding pipe cleaning equipment as described in claim 1 or 3, characterized in that, The other end of the hook bottom (1012) away from the clamp body (1) has a guide slope (1014) formed on the side, and the guide slope (1014) is set facing the clamping gap (103).

5. The clamping device for the disc-lock type scaffold pipe cleaning equipment as described in claim 1, characterized in that, The aforementioned limiting hooks and the clamp body (1) are located in the same cylindrical surface, and the hook bottoms (1012) of the limiting hooks are located in the same circumference of the cylindrical body.

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