Automatic closing device for pump pipe to prevent spillage of high-strength concrete

Abstract

The utility model discloses an automatic closing device for a pump pipe for preventing high-strength concrete from spilling, comprising a pump pipe outer tube, a slider and a closing curtain; the pump pipe outer tube is fixedly sleeved at the discharge end of the pump pipe, the slider can be slidably embedded in the tube wall cavity of the pump pipe outer tube, the sliders are arranged in pairs, and the two pairs of sliders are symmetrically arranged along the circumferential direction of the end of the pump pipe outer tube; the two ends of the closing curtain are respectively fixed on a pair of sliders, the closing curtain can be embedded in the tube wall cavity between a pair of sliders close to each other, or the closing curtain can be unfolded between a pair of sliders far away from each other and cover the discharge end of the pump pipe, so that the pair of closing curtains close the discharge end of the pump pipe. The utility model relates to the technical field of concrete construction equipment, and can solve the problem of color difference of high and low grade concrete caused by the residual concrete falling in the mobile pump pipe in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete construction equipment, in particular to an automatic pump pipe closing device for preventing high-strength concrete from spilling. Background Art

[0002] In the traditional concrete pouring process, according to the strength requirements of components such as columns, beams and slabs, the column concrete is usually two or more grades higher than the beam and slab concrete. When pouring column concrete, due to the need to frequently move the pump pipe, the high-grade concrete remaining in the pump pipe often falls onto components such as beams and slabs with low-grade concrete during the movement, causing color differences between high- and low-grade concrete after demolding, thus affecting the quality of the construction appearance. Therefore, it is necessary to provide an automatic pump pipe closing device that prevents high-strength concrete from spilling, which can solve the problem of color differences between high- and low-grade concrete caused by the falling of residual concrete in the moving pump pipe in the prior art. Summary of the invention

[0003] The utility model aims to provide an automatic pump pipe closing device for preventing high-strength concrete from spilling, which can solve the problem of color difference between high-grade and low-grade concrete caused by residual concrete falling off in the mobile pump pipe in the prior art.

[0004] The utility model is achieved in this way:

[0005] An automatic pump pipe closing device for preventing high-strength concrete from spilling comprises a pump pipe outer tube, a slider and a closing curtain; the pump pipe outer tube is fixedly sleeved at the discharge end of the pump pipe, the slider is slidably embedded in the tube wall cavity of the pump pipe outer tube, the sliders are arranged in pairs, and the two pairs of sliders are symmetrically arranged along the circumferential direction of the end of the pump pipe outer tube; the two ends of the closing curtain are respectively fixed to a pair of sliders, the closing curtain can be embedded in the tube wall cavity between a pair of sliders that are close to each other, or the closing curtain can be unfolded between a pair of sliders that are far away from each other and cover the discharge end of the pump pipe, so that the pair of closing curtains close the discharge end of the pump pipe.

[0006] The end of the cavity of the cylinder wall of the outer cylinder of the pump tube is formed with a slider slot, and two pairs of sliders are slidably embedded in the slider slot.

[0007] A tractor slideway is formed in the wall cavity of the pump tube outer tube, and the tractor slideway is located inside the slider slideway; two pairs of tractors are respectively movably embedded in the tractor slideways, and each slider is connected to a corresponding tractor.

[0008] A rechargeable battery pack and an operating button are embedded on the outer wall of the pump tube outer cylinder, and the rechargeable battery pack and the operating button are both electrically connected to the two pairs of tractors.

[0009] The end of the pump tube outer cylinder extends to the outside of the discharge end of the pump tube, so that the slider slot is located outside the discharge end of the pump tube, and the closed curtain can cover the outside of the discharge end of the pump tube.

[0010] A pair of retractors are symmetrically arranged in the wall cavity of the outer tube of the pump tube, and the pair of retractors are respectively connected to the middle parts of a pair of closed curtains through traction lines.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model is provided with a pump pipe outer tube, a slider and a closed curtain. The pump pipe outer tube is directly sleeved on the pump pipe through a clamp, and the disassembly and assembly are convenient and quick. The slider drives the closed curtain to unfold, which is used to cover and seal the discharge end of the pump pipe, thereby preventing the residual concrete in the pump pipe from falling onto concrete components of different grades during the movement of the pump pipe, thereby preventing the problem of obvious color difference between high and low strength concrete, thereby ensuring the appearance quality of concrete pouring, and is suitable for various types of pump pipes and various components of concrete pouring operations.

[0013] 2. The utility model is provided with a slider, a tractor, a retractor and a traction line. The tractor drives the slider to move synchronously, so that a pair of sliders move away from each other and unfold the closed curtain or move close to each other and store the closed curtain. At the same time, the retractor pulls the traction line to pull the closed curtain, which is convenient for storing the closed curtain, ensuring smooth concrete pouring and discharging of the pump pipe, and is convenient to operate, safe and economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation of the automatic closing device for pump pipes of the utility model for preventing high-strength concrete from spilling;

[0015] Figure 2 This is a bottom view of the automatic closing device for pump pipes for preventing high-strength concrete from spilling (closed curtain storage state) of the utility model; the arrow direction in the figure is the moving direction of the slider;

[0016] Figure 3 This is a bottom view of the automatic closing device for pump pipes for preventing high-strength concrete from spilling according to the utility model (the closing curtain is in the unfolded state); the arrow direction in the figure is the moving direction of the slider and the closing curtain;

[0017] Figure 4 The utility model is a cross-sectional view of an automatic closing device for a pump pipe for preventing high-strength concrete from spilling.

[0018] In the figure, 1 is the outer tube of the pump tube, 101 is the slide slot of the slider, 102 is the slide slot of the tractor, 103 is the rechargeable battery pack, 104 is the operating button, 105 is the puller, 106 is the traction line, 2 is the slider, 3 is the closed curtain, 4 is the pump tube, and 5 is the tractor. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Please see attached Figure 1 To Attachment Figure 3 , an automatic closing device for a pump pipe for preventing high-strength concrete from spilling, comprising a pump pipe outer tube 1, a slider 2 and a closing curtain 3; the pump pipe outer tube 1 is fixedly sleeved at the discharge end of a pump pipe 4 through a clamp, the slider 2 is slidably embedded in the cylinder wall cavity of the pump pipe outer tube 1, the sliders 2 are arranged in pairs, and the two pairs of sliders 2 are symmetrically arranged along the circumferential direction of the end of the pump pipe outer tube 1; the two ends of the closing curtain 3 are respectively fixed to a pair of sliders 2 by gluing, the closing curtain 3 can be embedded in the cylinder wall cavity between a pair of sliders 2 that are close to each other, or the closing curtain 3 can be unfolded between a pair of sliders 2 that are far away from each other and cover the discharge end of the pump pipe 4, so that a pair of closing curtains 3 close the discharge end of the pump pipe 4.

[0021] Preferably, the pump tube outer tube 1 can be selected according to the adaptability of the specifications of the pump tube 4, and the inner diameter of the pump tube outer tube 1 can be slightly larger than the outer diameter of the pump tube 4, ensuring that the pump tube outer tube 1 can be firmly installed to the discharge end of the pump tube 4 by means of a clamp or the like. The pump tube outer tube 1 can be made of a double-layer steel sleeve, and a hollow cylinder wall cavity is formed between the double-layer steel sleeves for installing the slider 2.

[0022] Preferably, the closed curtain 3 can be made of a material with waterproof, flexible, foldable and other properties such as a soft plastic film. The closed curtain 3 is a semicircular structure with the same diameter as the outer tube 1 of the pump tube, so that the discharge end of the pump tube 4 is closed by a pair of closed curtain covers.

[0023] Preferably, the slider 2 can be a steel slider. When a pair of sliders 2 move away from each other, the two ends of the closed curtain 3 move away from each other, so that the closed curtain 3 is unfolded, so as to cover the discharge end of the pump pipe 4. When a pair of sliders 2 move closer to each other, the two ends of the closed curtain 3 move closer to each other, so that the closed curtain 3 is folded, which does not affect the concrete pumping and pouring at the discharge end of the pump pipe 4.

[0024] Please see attached Figure 3 A slider groove 101 is formed at the end of the cavity of the wall of the pump tube outer tube 1, and two pairs of sliders 2 can be slidably embedded in the slider groove 101.

[0025] Preferably, the slider 2 can be a T-shaped slider, and the slider groove 101 can be a T-shaped groove. The slider 2 can be slidably embedded in the slider groove 101, ensuring smooth sliding and not easy to fall off.

[0026] Preferably, a pair of slider grooves 101 can be symmetrically arranged, and each slider groove 101 is a semicircular ring structure, which is used to ensure the movement and limitation of a pair of sliders 2, and the movement trajectory of each slider 2 is 1 / 4 of a circle.

[0027] Please see attached Figure 3 A tractor chute 102 is formed in the wall cavity of the pump tube outer tube 1, and the tractor chute 102 is located on the inner side of the slider chute 101; two pairs of tractors 5 are respectively movably embedded in the tractor chute 102, and each slider 2 is connected to a corresponding tractor 5.

[0028] Preferably, a guide rail for guiding and limiting the moving track of the tractor 5 can be installed in the tractor chute 102, so that the tractor 5 can stably move on the tractor chute 102 through the guide wheel and the guide wheel motor. The guide wheel motor of the tractor 5 can be controlled in linkage with the concrete pouring pumping system. When the concrete pumping stops, the guide wheel motor of the tractor 5 is started to realize the linkage movement of the tractor 5, thereby driving the slider 2 to move before the pump pipe 4 moves, preventing the concrete from being scattered randomly when the pump pipe 4 moves.

[0029] Preferably, a pair of tractor chutes 102 can be symmetrically arranged, and each tractor chutes 102 is a semicircular ring structure, which is used to ensure the movement and positioning of a pair of tractors 5, and the movement trajectory of each tractor 5 is a 1 / 4 circle.

[0030] Please see attached Figure 1 A rechargeable battery pack 103 and an operating button 104 are embedded on the outer wall of the pump tube outer tube 1, and the rechargeable battery pack 103 and the operating button 104 are electrically connected to the two pairs of tractors 5.

[0031] Preferably, the rechargeable battery pack 103 can adopt a rechargeable battery pack in the prior art. After the entire device is disassembled, it can be charged through USB or other means. The rechargeable battery pack 103 is used to provide working power for the four tractors 5.

[0032] Preferably, the operating button 104 may include a control panel of a forward control button, a reverse control button, and a power button, and the control buttons of the guide wheel motors of the four tractors 5 may be integrated into the control panel through wires to facilitate the control of the four tractors 5.

[0033] Please see attached Figure 4 The end of the pump tube outer tube 1 extends to the outside of the discharge end of the pump tube 4, so that the slider slot 101 is located outside the discharge end of the pump tube 4, and the closed curtain 3 can cover the outside of the discharge end of the pump tube 4.

[0034] The closed curtain 3 is arranged outside the discharge end of the pump tube 4 through the slider 2 and the slider slot 101, while ensuring that the unfolded closed curtain 3 effectively seals the discharge end of the pump tube 4, and preventing the folded closed curtain 3 from affecting the discharge of the pump tube 4.

[0035] Please see attached Figure 4 A pair of retractors 105 are symmetrically arranged in the wall cavity of the pump tube outer tube 1, and the pair of retractors 105 are connected to the middle part of a pair of closed curtains 3 through traction lines 106 respectively.

[0036] Preferably, the puller 105 can adopt a winding motor, and the traction line 106 is connected to the output shaft of the winding motor. The output shaft of the winding motor controls the traction line 106 to be released from the output shaft or wound on the output shaft through forward and reverse rotation, so that the traction line 106 pulls or releases the middle part of the closed curtain 3.

[0037] When the pair of sliders 2 are close to each other, the two ends of the closed curtain 3 are close to each other, which may easily cause the middle part of the closed curtain 3 to fall down and affect the discharge of the pump tube 4. The middle part of the closed curtain 3 is pulled upward by the traction line 106, so that the closed curtain 3 has a certain folding and storage function.

[0038] At the same time, when the middle part of the closed curtain 3 is pulled upward, a slope structure with a high middle and low ends is formed, which can make the concrete dropped on the closed curtain 3 slide down and avoid clogging the slider slot 101. In addition, since the closed curtain 3 is folded and stored after the pump pipe 4 moves to the pouring position, the sliding concrete will not fall on the concrete components of different grades, thereby preventing the occurrence of color difference between high-grade and low-grade concrete.

[0039] Preferably, a pair of sliders 2 and traction wires 106 pull the two ends of the diameter and the arc-shaped middle of the semicircular closed curtain 3 to ensure the unfolding function of the closed curtain 3. Elastic strips can also be installed on the arc-shaped edges of the closed curtain 3 to facilitate better flattening and folding of the closed curtain 3 by utilizing the elastic force of the elastic strips.

[0040] Please see attached Figure 1 To Attachment Figure 4 , the usage method and working principle of the utility model are:

[0041] A pump tube outer tube 1 of suitable size is selected according to the outer diameter of the pump tube 4. The pump tube outer tube 1 is fixed to the discharge end of the pump tube 4 through a clamp, and the slider groove 101 in the pump tube outer tube 1 is located outside the discharge end of the pump tube 4 to ensure that the unfolding and storage of the closed curtain 3 will not interfere with the pump tube 4, and can cover the discharge end of the pump tube 4 when unfolded.

[0042] When the pump pipe 4 is poured with concrete, a pair of sliders 2 move closer to each other, and the closed curtain 3 is pulled by the traction line 106 and stored in the cylinder wall cavity of the pump pipe outer tube 1 between the pair of sliders 2. The two pairs of sliders 2 and the pair of closed curtains 3 are symmetrically arranged on both sides of the pump pipe 4.

[0043] Before moving the pump tube 4, the two pairs of tractors 5 are started to move along the tractor chute 102 by operating the button 104. The pair of tractors 5 move away from each other along the tractor chute 102, and drive the pair of sliders 2 to move away from each other along the slider chute 101 to the two sides of the discharge end of the pump tube 4, and the two ends of the closed curtain 3 move synchronously with the pair of sliders 2. At the same time, the puller 105 releases the pulling line 106, so that the closed curtain 3 is unfolded at the discharge end of the pump tube 4 and covers half of the discharge end of the pump tube 4.

[0044] The movement process of the two pairs of tractors 5 is the same, only the direction is different, which will not be repeated here. The two pairs of tractors 5 move to make a pair of closing curtains 3 completely cover and seal the discharge end of the pump pipe 4, thereby preventing the residual concrete in the pump pipe 4 from falling, and then move the pump pipe 4 to the next pouring position.

[0045] When the next pouring is performed, the two pairs of tractors 5 are started to move along the tractor chute 102 by operating the button 104. The pair of tractors 5 move closer to each other along the tractor chute 102, and drive the pair of sliders 2 to move closer to each other along the slider chute 101 to the side of the discharge end of the pump pipe 4, and the two ends of the closed curtain 3 move synchronously with the pair of sliders 2. At the same time, the puller 105 winds the pulling line 106, so that the closed curtain 3 is stored in the cylinder wall cavity of the pump pipe outer cylinder 1 between the pair of sliders 2, which does not affect the pouring of the pump pipe 4.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic closing device for a pump pipe to prevent high-strength concrete from spilling, characterized by: The invention comprises a pump tube outer tube (1), a slider (2) and a closed curtain (3); the pump tube outer tube (1) is fixedly sleeved at the discharge end of the pump tube (4); the slider (2) can be slidably embedded in the tube wall cavity of the pump tube outer tube (1); the sliders (2) are arranged in pairs, and the two pairs of sliders (2) are symmetrically arranged along the circumferential direction of the end of the pump tube outer tube (1); the two ends of the closed curtain (3) are respectively fixed on a pair of sliders (2); the closed curtain (3) can be embedded in the tube wall cavity between a pair of sliders (2) that are close to each other, or the closed curtain (3) can be unfolded between a pair of sliders (2) that are far away from each other and cover the discharge end of the pump tube (4), so that the pair of closed curtains (3) seal the discharge end of the pump tube (4).

2. The pump pipe automatic closing device for preventing high-strength concrete from spilling according to claim 1 is characterized in that: A slider groove (101) is formed at the end of the cavity of the wall of the pump tube outer tube (1), and two pairs of sliders (2) are slidably embedded in the slider groove (101).

3. The pump pipe automatic closing device for preventing high-strength concrete from spilling according to claim 2 is characterized in that: A tractor slide groove (102) is formed in the wall cavity of the pump tube outer tube (1), and the tractor slide groove (102) is located on the inner side of the slider slide groove (101); two pairs of tractors (5) are respectively movably embedded in the tractor slide groove (102), and each slider (2) is connected to a corresponding tractor (5).

4. The pump pipe automatic closing device for preventing high-strength concrete from spilling according to claim 3 is characterized in that: A rechargeable battery pack (103) and an operating button (104) are embedded on the outer wall of the pump tube outer cylinder (1), and the rechargeable battery pack (103) and the operating button (104) are both electrically connected to the two pairs of tractors (5).

5. The pump pipe automatic closing device for preventing high-strength concrete from spilling according to claim 2 or 3 is characterized in that: The end of the pump tube outer tube (1) extends to the outside of the discharge end of the pump tube (4), so that the slider groove (101) is located outside the discharge end of the pump tube (4), and the closed curtain (3) can cover the outside of the discharge end of the pump tube (4).

6. The automatic pump pipe closing device for preventing high-strength concrete from spilling according to any one of claims 1 to 4, characterized in that: A pair of retractors (105) are symmetrically arranged in the wall cavity of the pump tube outer tube (1), and the pair of retractors (105) are respectively connected to the middle parts of a pair of closed curtains (3) through traction lines (106).

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