Device for realizing loose and tight of double-end pipe pile mold screw

CN224600979UActive Publication Date: 2026-08-07JIANHUA CONSTRUCTION MATERIALS (CHINA) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHUA CONSTRUCTION MATERIALS (CHINA) CO LTD
Filing Date
2025-07-30
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

目前,预制管桩生产制造过程中合模螺丝的拧紧和拧松主要是由人工手持风炮完成,该方式存在效率不稳定、劳动强度大、安全隐患大等缺陷

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a device for realizing the tightness of double -end pipe pile die screw, including sliding base assembly, mobile wind gun subassembly and fixed wind gun subassembly, mobile wind gun subassembly install in the right side of sliding base assembly through linear guide rail sliding block, fixed wind gun subassembly install in the left side of sliding base assembly, mobile wind gun subassembly follow linear guide rail sliding block and move. Sliding base assembly includes bottom plate, screw rod fixed support, ball screw, nut seat, screw rod nut, motor fixed base, coupling, motor, linear guide rail sliding block, clamp ware. The device for realizing the tightness of double -end pipe pile die screw that has adopted the utility model, through the mode that mobile wind gun subassembly and fixed wind gun subassembly carry out the tightening and loosening of pipe pile mould die screw simultaneously, has improved work efficiency, reduced labour intensity and potential safety hazard.
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Description

Technical Field

[0001] This utility model relates to the field of pipe pile manufacturing technology, and in particular to the field of pipe pile molds, specifically a device for tightening and loosening the screws of a double-headed pipe pile mold. Background Technology

[0002] The production of precast pipe piles requires the use of pipe pile molds, which consist of a top mold and a bottom mold connected by mold-closing screws. Currently, the tightening and loosening of the mold-closing screws during the precast pipe pile production process is mainly done manually with a hand-held pneumatic wrench. This method has drawbacks such as unstable efficiency, high labor intensity, and significant safety hazards. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a device for tightening and loosening the mold-closing screws of double-headed pipe piles that is simple in structure, highly efficient, and widely applicable.

[0004] To achieve the above objectives, the device for tightening and loosening the mold-closing screws of the double-headed pipe pile according to this utility model is as follows:

[0005] The device for tightening and loosening the formwork screws of double-headed pipe piles is characterized by comprising a sliding base assembly, a movable air jet assembly, and a fixed air jet assembly. The movable air jet assembly is mounted on the right side of the sliding base assembly via a linear guide slider, and the fixed air jet assembly is mounted on the left side of the sliding base assembly. The movable air jet assembly supports left and right movement following the linear guide slider.

[0006] Preferably, the sliding base assembly includes a base plate, a lead screw fixing support, a ball screw, a nut seat, a lead screw nut, a motor mounting base, a coupling, a motor, a linear guide slider, and a clamp. The lead screw fixing support and the motor mounting base are mounted on the base plate. Both ends of the ball screw pass through the lead screw fixing support and the motor mounting base. The lead screw nut is mounted on the ball screw. The round hole of the nut seat connects to the lead screw nut. The top surface of the nut seat is connected to the movable air gun base of the mobile air gun assembly. The motor is mounted on the motor mounting base and connected to the ball screw via the coupling. The guide rail of the linear guide slider is mounted on the base plate. The slider of the linear guide slider is connected to the movable air gun base of the mobile air gun assembly. The clamp is mounted on the guide rail of the linear guide slider and fixed to the movable air gun base.

[0007] Preferably, the mobile air jet assembly includes an air jet, a movable air jet base, side lugs, outer pins, an outer flange, an inner flange, inner pins, a vibration damping pad, a compression spring, and a bolt sleeve. Two side lugs are installed on both sides of the movable air jet base. Two outer pins simultaneously pass through the pin holes of the side lugs and the outer pin holes of the outer flange, connecting the side lugs and the outer flange. The compression spring is inserted between the side lugs and the outer flange. Two inner pins simultaneously pass through the pin holes of the inner flange and the inner pin holes of the outer flange, connecting the inner flange and the outer flange. The air jet is installed on the inner flange. The vibration damping pad is inserted at the connection between the inner flange and the outer flange. The bolt sleeve is installed at the head end of the air jet.

[0008] Preferably, the movable air cannon base includes a back plate and a side plate, with the side plate mounted on one side of the back plate.

[0009] Preferably, the fixed air jet assembly includes an air jet, a fixed air jet base, side lugs, outer pins, an outer flange, an inner flange, inner pins, a vibration damping pad, a compression spring, and a bolt sleeve. Two side lugs are installed on both sides of the fixed air jet base. Two outer pins simultaneously pass through the pin holes of the side lugs and the outer pin holes of the outer flange, connecting the side lugs and the outer flange. The compression spring is inserted between the side lugs and the outer flange. Two inner pins simultaneously pass through the pin holes of the inner flange and the inner pin holes of the outer flange, connecting the inner flange and the outer flange. The air jet is installed on the inner flange. The vibration damping pad is inserted at the connection between the inner flange and the outer flange. The bolt sleeve is installed at the head end of the air jet.

[0010] Preferably, the fixed air gun base includes a back plate and two side plates, with the two side plates mounted on both sides of the back plate.

[0011] The device for tightening and loosening the mold closing screws of double-headed pipe piles, which adopts the present invention, improves work efficiency and reduces labor intensity and safety hazards by simultaneously tightening and loosening the mold closing screws of pipe piles through the moving air gun assembly and the fixed air gun assembly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the double-headed pipe pile mold closing screw tightening mechanism of the present invention.

[0013] Figure 2 This is a schematic diagram of the sliding base assembly of the device for tightening and loosening the mold-closing screws of the double-headed pipe pile according to this utility model.

[0014] Figure 3 This is a schematic diagram of the movable air cannon assembly of the device for tightening and loosening the mold-closing screws of the double-headed pipe pile according to this utility model.

[0015] Figure 4This is a schematic diagram of the fixed air gun assembly of the device for tightening and loosening the mold-closing screws of the double-headed pipe pile according to this utility model.

[0016] Figure label:

[0017] 1. Sliding base assembly

[0018] 2. Mobile air cannon assembly

[0019] 3 Fixed air jet assembly

[0020] 11. Base Plate

[0021] 12. Screw fixed support

[0022] 13 Ball screw

[0023] 14 Nut seat

[0024] 15. Screw nut

[0025] 16 Motor mounting bracket

[0026] 17 Couplings

[0027] 18 motors

[0028] 19 Linear guide slider

[0029] 20 clamps

[0030] 21 Pneumatic Cannon

[0031] 22 Movable air cannon base

[0032] 23 Side Ear Seat

[0033] 24 Outer pins

[0034] 25 Outer flange

[0035] 26 Inner Flange

[0036] 27 Inner Pin Shaft

[0037] 28 Vibration damping pads

[0038] 29 Compression Spring

[0039] 30 Bolt Sleeve Detailed Implementation

[0040] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0041] The present invention relates to a device for tightening and loosening the screws of a double-headed pipe pile mold, comprising a sliding base assembly 01, a movable air jet assembly 02, and a fixed air jet assembly 03. The movable air jet assembly 02 is mounted on the right side of the sliding base assembly 01 via a linear guide slider 19, and the fixed air jet assembly 03 is mounted on the left side of the sliding base assembly 01. The movable air jet assembly 02 can move left and right following the linear guide slider 19.

[0042] In a preferred embodiment of this utility model, the sliding base assembly 01 includes a base plate 11, a lead screw fixing support 12, a ball screw 13, a nut seat 14, a lead screw nut 15, a motor mounting base 16, a coupling 17, a motor 18, a linear guide slider 19, and a clamp 20. The lead screw fixing support 12 and the motor mounting base 16 are mounted on the base plate 11. Both ends of the ball screw 13 pass through the lead screw fixing support 12 and the motor mounting base 16. The lead screw nut 15 is mounted on the ball screw 13. The nut seat 14 is connected to the screw nut 15 through the round hole. The top surface of the nut seat 14 is connected to the movable air gun base 22 of the movable air gun assembly 02. The motor 18 is mounted on the motor mounting base 16 and connected to the ball screw 13 through the coupling 17. The guide rail of the linear guide slider 19 is mounted on the base plate 11. The slider of the linear guide slider 19 is connected to the movable air gun base 22 of the movable air gun assembly 02. The clamp 20 is mounted on the guide rail of the linear guide slider 19 and fixed to the movable air gun base 22.

[0043] In a preferred embodiment of this utility model, the mobile air jet assembly 02 includes an air jet 21, a movable air jet base 22, side ear seats 23, outer pins 24, outer flanges 25, inner flanges 26, inner pins 27, vibration damping pads 28, compression springs 29, and bolt sleeves 30. Two side ear seats 23 are installed on both sides of the movable air jet base 22. Two outer pins 24 simultaneously pass through the pin holes of the side ear seats 23 and the outer pin holes of the outer flanges 25, connecting the side ear seats 23 and the outer flanges 25. The compression springs 29 are inserted between the side ear seats 23 and the outer flanges 25. Two inner pins 27 simultaneously pass through the pin holes of the inner flanges 26 and the inner pin holes of the outer flanges 25, connecting the inner flanges 26 and the outer flanges 25. The air jet 21 is installed on the inner flanges 26. The vibration damping pads 28 are inserted at the connection between the inner flanges 26 and the outer flanges 25. The bolt sleeves 30 are installed at the head end of the air jet 21.

[0044] Preferably, the movable air cannon base 22 includes a back plate and a side plate, with the side plate mounted on one side of the back plate.

[0045] In a preferred embodiment of this utility model, the fixed air jet assembly 03 includes an air jet 21, a fixed air jet base 31, side ear seats 23, outer pins 24, outer flanges 25, inner flanges 26, inner pins 27, vibration damping pads 28, compression springs 29, and bolt sleeves 30. Two side ear seats 23 are installed on both sides of the fixed air jet base 31. Two outer pins 24 simultaneously pass through the pin holes of the side ear seats 23 and the outer pin holes of the outer flanges 25, connecting the side ear seats 23 and the outer flanges 25. The compression springs 29 are inserted between the side ear seats 23 and the outer flanges 25. Two inner pins 27 simultaneously pass through the pin holes of the inner flanges 26 and the inner pin holes of the outer flanges 25, connecting the inner flanges 26 and the outer flanges 25. The air jet 21 is installed on the inner flanges 26. The vibration damping pads 28 are inserted at the connection between the inner flanges 26 and the outer flanges 25. The bolt sleeves 30 are installed at the head end of the air jet 21.

[0046] In a preferred embodiment of the present invention, the fixed air gun base 31 includes a back plate and two side plates, the two side plates being installed on both sides of the back plate.

[0047] In the specific embodiments of this utility model, the appendix Figure 1 This is a double-headed pipe pile formwork clamping screw tightening mechanism, mainly composed of three components: a sliding base assembly 01, a movable air jet assembly 02, and a fixed air jet assembly 03. Structural relationship: the movable air jet assembly 02 is mounted on the right side of the sliding base assembly 01 via a linear guide slider 19, and the fixed air jet assembly 03 is mounted on the left side of the sliding base assembly 01.

[0048] Appendix Figure 2 The sliding base assembly 01 mainly consists of a base plate 11, a lead screw fixing support 12, a ball screw 13, a nut seat 14, a lead screw nut 15, a motor mounting base 16, a coupling 17, a motor 18, a linear guide slider 19, and a clamp 20. Structural relationship: The ball screw 13 is mounted on the base plate 11 via the lead screw fixing support 12 and the motor mounting base 16. The lead screw nut 15 is mounted on the ball screw 13. The round hole of the nut seat 14 connects to the lead screw nut 15, and its top surface connects to the movable air blower base 22. The motor 18 is mounted on the motor mounting base 16 and connected to the ball screw 13 via the coupling 17. The guide rail of the linear guide slider 19 is mounted on the base plate 11, and the slider is connected to the movable air blower base 22. The clamp 20 is mounted on the guide rail of the linear guide slider 19 and fixed to the movable air blower base 22.

[0049] Appendix Figure 3The mobile air jet assembly 02 mainly consists of an air jet 21, a movable air jet base 22, side lugs 23, outer pins 24, outer flanges 25, inner flanges 26, inner pins 27, vibration damping pads 28, compression springs 29, and bolt sleeves 30. Structural relationship: Two side lugs 23 are installed on both sides of the movable air jet base 22. Two outer pins 24 are inserted into the pin holes of the side lugs 23 and the outer pin holes of the outer flanges 25, connecting them, with a compression spring 29 placed between them. Two inner pins 27 are inserted into the pin holes of the inner flanges 26 and the inner pin holes of the outer flanges 25, connecting them. The air jet 21 is installed on the inner flange 26, with vibration damping pads 28 placed at the connection point. Bolt sleeves 30 are installed at the head end of the air jet 21.

[0050] Appendix Figure 4 For the fixed air gun assembly 03, apart from the fixed air gun base 31, the other parts and installation structure are the same as those of the movable air gun assembly 02.

[0051] This technical solution uses two air jets working simultaneously, which improves work efficiency. One of the air jets can move left and right, and the distance between the two air jets can be adjusted to accommodate different mold clamping screw spacings.

[0052] This technical solution is installed at the end of the robotic arm and can tighten the clamping screws of two pipe piles on one side.

[0053] The ball screw drive in this technical solution can be replaced with a gear and rack drive; the ball screw drive can be replaced with a cylinder or hydraulic cylinder; and the pneumatic wrench can be replaced with an electric wrench.

[0054] Exercise instructions:

[0055] The initial distance between the movable air wrench assembly 02 and the fixed air wrench assembly 03 is 500mm, which is suitable for most pipe pile mold closing screw spacings. When the distance changes, the movable air wrench assembly 02 moves left and right under the drive of the motor to adapt to different screw spacings. After the movable air wrench assembly 02 moves to the designated position, the clamp 20 is activated, locking it onto the guide rail of the linear guide slider 19. The movable air wrench assembly 02 and the fixed air wrench assembly 03 simultaneously put the bolt sleeve 30 into the closing screws for tightening or loosening until the entire pipe pile mold closing screws are tightened or loosened. The outer flange 25 and inner flange 26 of the movable air wrench assembly 02 and the fixed air wrench assembly 03 allow for a deviation of up to 3mm when the bolt sleeve 30 is put into the closing screws. The vibration damping pad 28 can reduce the vibration impact of the air wrench 21 on the moving parts and fastening parts of the double-headed pipe pile closing screw tightening and loosening mechanism when the closing screws are tightened or loosened.

[0056] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0057] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0058] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The device for tightening and loosening the mold closing screws of double-headed pipe piles, which adopts the present invention, improves work efficiency and reduces labor intensity and safety hazards by simultaneously tightening and loosening the mold closing screws of pipe piles through the moving air gun assembly and the fixed air gun assembly.

[0061] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A device for tightening and loosening the formwork screws of a double-headed pipe pile, characterized in that, The device includes a sliding base assembly (01), a movable air jet assembly (02), and a fixed air jet assembly (03). The movable air jet assembly (02) is mounted on the right side of the sliding base assembly (01) via a linear guide slider (19), and the fixed air jet assembly (03) is mounted on the left side of the sliding base assembly (01). The movable air jet assembly (02) can move left and right following the linear guide slider (19).

2. The device for tightening and loosening the mold-closing screws of a double-headed pipe pile according to claim 1, characterized in that, The sliding base assembly (01) includes a base plate (11), a lead screw fixing support (12), a ball screw (13), a nut seat (14), a lead screw nut (15), a motor mounting base (16), a coupling (17), a motor (18), a linear guide slider (19), and a clamp (20). The lead screw fixing support (12) and the motor mounting base (16) are mounted on the base plate (11). Both ends of the ball screw (13) pass through the lead screw fixing support (12) and the motor mounting base (16). The lead screw nut (15) is mounted on the ball screw (13). (14) connects the screw nut (15) to the round hole. The top surface of the nut seat (14) is connected to the movable air gun base (22) of the movable air gun assembly (02). The motor (18) is installed on the motor mounting base (16) and connected to the ball screw (13) through the coupling (17). The guide rail of the linear guide slider (19) is installed on the base plate (11). The slider of the linear guide slider (19) is connected to the movable air gun base (22) of the movable air gun assembly (02). The clamp (20) is installed on the guide rail of the linear guide slider (19) and fixed to the movable air gun base (22).

3. The device for tightening and loosening the mold-closing screws of a double-headed pipe pile according to claim 1, characterized in that, The mobile air gun assembly (02) includes an air gun (21), a movable air gun base (22), side lugs (23), an outer pin (24), an outer flange (25), an inner flange (26), an inner pin (27), a vibration damping pad (28), a compression spring (29), and a bolt sleeve (30). Two side lugs (23) are installed on both sides of the movable air gun base (22). Two outer pins (24) are simultaneously inserted into the pin holes of the side lugs (23) and the outer pin holes of the outer flange (25), thus connecting the side lugs (23) and the outer flange (25). The flange (25) is connected, the compression spring (29) is inserted between the side ear seat (23) and the outer flange (25), the two inner pins (27) are inserted into the pin hole of the inner flange (26) and the inner pin hole of the outer flange (25) at the same time, connecting the inner flange (26) and the outer flange (25), the air gun (21) is installed on the inner flange (26), the vibration damping pad (28) is inserted into the connection between the inner flange (26) and the outer flange (25), and the bolt sleeve (30) is installed at the head end of the air gun (21).

4. The device for tightening and loosening the formwork screws of a double-headed pipe pile according to claim 3, characterized in that, The movable air cannon base (22) includes a back plate and a side plate, with the side plate mounted on one side of the back plate.

5. The device for tightening and loosening the mold-closing screws of a double-headed pipe pile according to claim 1, characterized in that, The fixed air jet assembly (03) includes an air jet (21), a fixed air jet base (31), side lugs (23), an outer pin (24), an outer flange (25), an inner flange (26), an inner pin (27), a vibration damping pad (28), a compression spring (29), and a bolt sleeve (30). Two side lugs (23) are installed on both sides of the fixed air jet base (31). Two outer pins (24) are simultaneously inserted into the pin holes of the side lugs (23) and the outer pin holes of the outer flange (25), thus connecting the side lugs (23) and the outer flange (25). The flange (25) is connected, the compression spring (29) is inserted between the side ear seat (23) and the outer flange (25), the two inner pins (27) are inserted into the pin hole of the inner flange (26) and the inner pin hole of the outer flange (25) at the same time, connecting the inner flange (26) and the outer flange (25), the air gun (21) is installed on the inner flange (26), the vibration damping pad (28) is inserted into the connection between the inner flange (26) and the outer flange (25), and the bolt sleeve (30) is installed at the head end of the air gun (21).

6. The device for tightening and loosening the mold-closing screws of a double-headed pipe pile according to claim 5, characterized in that, The fixed air cannon base (31) includes a back plate and two side plates, the two side plates being installed on both sides of the back plate.