Temperature control device for deep foundation pit concrete curing

Abstract

The utility model relates to a temperature control device for deep foundation pit concrete curing, which comprises two symmetrically arranged support frames, a spray pipe is slidably connected between the two support frames through a sliding component, water inlet pipes are fixedly communicated with the top surface of the spray pipe close to two ends, a group of spray heads are fixedly communicated with the bottom surface of the spray pipe, and the spray heads are fixedly communicated with the spray pipe. A sealing mechanism is arranged on the bottom face of the spray head and comprises a fixing frame, the fixing frame is fixedly arranged in the spray head, a guide rod is arranged in the middle of the fixing frame in a penetrating mode, the portion, close to the outer side, of the upper end of the guide rod is sleeved with a reset spring, and the bottom end of the guide rod is fixedly connected with a sealing plug. And the top surface of the sealing plug is attached to the end surface of the bottom end of the spray head, so that the water outlet of the spray assembly in an idle state can be sealed, and the blockage problem caused by reverse penetration of dust is reduced.

Description

Technical Field

[0001] The utility model relates to a temperature control device for curing concrete in deep foundation pits, belonging to the spray technology field. Background Technique

[0002] A foundation pit is an earth pit excavated at the designed position of the foundation according to the base elevation and the foundation plane size. After the foundation pit excavation is completed, concrete pouring is required to make it take shape. Since the heat released by cement hydration is relatively concentrated and the internal temperature rises relatively fast, resulting in a large temperature difference between the inside and outside of the concrete, it is easy to cause temperature cracks in the concrete, affecting the structural safety and normal use. Therefore, a temperature control device is needed for spray cooling to avoid concrete cracking.

[0003] Chinese Patent CN214713960U discloses a protective mobile spray device that can drive a water storage tank to slide on a lead screw to spray the lower part. However, most of the existing spray devices do not seal the water outlet of the spray component in the idle state, and thus may have problems of blockage caused by reverse penetration of dust. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a temperature control device for curing concrete in deep foundation pits, which can seal the water outlet of the spray component in the idle state and reduce the blockage problem caused by reverse penetration of dust.

[0005] The technical solution of the utility model is as follows:

[0006] A temperature control device for curing concrete in deep foundation pits includes two symmetrically arranged support frames. A spray pipe is slidably connected between the two support frames through a sliding component. Water inlet pipes are fixedly communicated with both ends of the top surface of the spray pipe, and a group of nozzles are fixedly communicated with the bottom surface of the spray pipe. A sealing mechanism is arranged on the bottom surface of the nozzle. The sealing mechanism includes a fixing frame fixedly arranged inside the nozzle. A guide rod is penetrated through the middle of the fixing frame. A return spring is sleeved on the outer side of the upper end of the guide rod, and a sealing plug is fixedly connected to the bottom end of the guide rod. The top surface of the sealing plug fits with the bottom end face of the nozzle.

[0007] Among them, the sliding component includes two driving motors fixedly arranged on the top surface of one of the support frames. The output end of the driving motor is fixedly connected with a reciprocating lead screw. Support blocks are movably sleeved on both sides of the reciprocating lead screw, and the two support blocks are respectively fixed on the tops of the two support frames; a ball slider is sleeved on the outer side of the reciprocating lead screw, and the spray pipe is fixedly connected to the bottoms of the two ball sliders.

[0008] Among them, two guide rails are fixedly connected to the opposite surfaces of the two support frames in the center, two support sleeves are fixedly connected to the top surface of the spray pipe in the center, and the support sleeves are slidably sleeved on the outer sides of the guide rails.

[0009] Among them, a number of movable balls are movably connected to the inner sides of the support sleeves.

[0010] The utility model has the following beneficial effects:

[0011] In this solution, by setting a sealing mechanism, when water enters the nozzle and impacts the sealing plug, the bottom end of the nozzle opens at this time, and the sprayed water passes through the nozzle for spraying and cooling. When the spraying work is over, the water source is closed, and under the action of the return spring, the guide rod and the sealing plug are driven to reset, and the sealing plug seals the bottom end of the nozzle, which can seal the water outlet of the spraying component in the idle state and reduce the blockage problem caused by the reverse penetration of dust. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is a schematic diagram of the structure of the spray pipe of the utility model;

[0014] Figure 3 is an exploded view of the guide rail and the support sleeve of the utility model;

[0015] Figure 4 is a schematic diagram of the structure of the sealing mechanism of the utility model.

[0016] The reference numerals in the drawings are represented as:

[0017] 1. Support frame; 2. Driving motor; 3. Reciprocating lead screw; 4. Ball slider; 5. Spray pipe; 6. Guide rail; 7. Support sleeve; 8. Water inlet pipe; 9. Nozzle; 10. Sealing mechanism; 11. Movable ball; 12. Fixed frame; 13. Guide rod; 14. Return spring; 15. Sealing plug. Detailed Description of the Invention

[0018] The following will combine the drawings and specific embodiments to elaborate on the utility model in detail.

[0019] Please refer to Figures 1 to 4 , the utility model provides a technical solution:

[0020] A temperature control device for concrete curing in deep foundation pits, comprising two symmetrically arranged support frames 1. A spray pipe 5 is slidably connected between the two support frames 1 through a sliding assembly. Water inlet pipes 8 are fixedly communicated with both ends of the top surface of the spray pipe 5, and a group of nozzles 9 are fixedly communicated with the bottom surface of the spray pipe 5. A sealing mechanism 10 is arranged on the bottom surface of the nozzle 9. The sealing mechanism 10 includes a fixed frame 12 which is fixedly arranged inside the nozzle 9. A guide rod 13 is arranged through the middle of the fixed frame 12. A return spring 14 is sleeved on the outer side of the upper end of the guide rod 13, and a sealing plug 15 is fixedly connected to the bottom end of the guide rod 13. The top surface of the sealing plug 15 fits with the bottom end face of the nozzle 9. In order to prevent dust from penetrating back into the inside of the nozzle 9 and causing blockage problems, the sealing mechanism 10 is provided.

[0021] Specifically, the water inlet pipe 8 is adapted to the nozzle 9, and the guide rod 13 is slidably connected with the fixed frame 12. The water inlet pipe 8 conveys water source to the spray pipe 5 and then enters the inside of the nozzle 9, impacting the sealing plug 15. The sealing plug 15 is pulled by the force to drive the guide rod 13 to slide downward. At this time, the bottom end of the nozzle 9 is opened, and the spray water sprays and cools the large-volume concrete components inside the foundation pit through the nozzle 9.

[0022] The top surface of the sealing plug 15 is arranged in a frustum shape, and the top surface of the sealing plug 15 fits with the bottom end face of the nozzle 9. When the spraying work is over, the water source is turned off. Under the action of the return spring 14, the guide rod 13 and the sealing plug 15 are driven to reset, and the sealing plug 15 seals the bottom end of the nozzle 9.

[0023] The sliding assembly includes two driving motors 2 fixedly arranged on the top surface of one of the support frames 1. The output end of the driving motor 2 is fixedly connected with a reciprocating lead screw 3. Support blocks are movably sleeved on both sides of the reciprocating lead screw 3, and the two support blocks are respectively fixed on the tops of the two support frames 1; A ball screw slider 4 is sleeved on the outer side of the reciprocating lead screw 3, and the spray pipe 5 is fixedly connected to the bottoms of the two ball screw sliders 4.

[0024] Two guide rails 6 are fixedly connected to the middle of the opposite surfaces of the two support frames 1. Two support sleeves 7 are fixedly connected to the middle of the top surface of the spray pipe 5. The support sleeves 7 are slidably sleeved on the outer sides of the guide rails 6, and a number of movable balls 11 are movably connected to the inner sides of the support sleeves 7.

[0025] First, fix the two support frames 1 at both ends above the foundation pit, start the driving motor 2 to drive the corresponding reciprocating lead screw 3 to rotate. The reciprocating lead screw 3 cooperates with the ball screw slider 4 to drive the spray pipe 5 to move horizontally. The support sleeve 7 cooperates with the guide rail 6 to play a role in supporting and guiding the movement of the spray pipe 5. At the same time, the movable balls 11 rub against the guide rail 6 and rotate, thereby reducing the movement resistance and improving the movement stability of the spray pipe 5.

[0026] The working principle of the above temperature control device for concrete curing in deep foundation pits is as follows:

[0027] First, fix the two support frames 1 at both ends above the foundation pit. Then, convey water source to the spray pipe 5 through the water inlet pipe 8 and then into the inside of the nozzle 9, which impacts the sealing plug 15. The sealing plug 15 is pulled by the force to drive the guide rod 13 to slide downward. The movement of the guide rod 13 simultaneously compresses the return spring 14. At this time, the bottom end of the nozzle 9 opens, and the sprayed water sprays and cools the mass concrete member inside the foundation pit through the nozzle 9. During the spray cooling process, start the drive motor 2 to drive the corresponding reciprocating lead screw 3 to rotate. The reciprocating lead screw 3 cooperates with the ball slider 4 to drive the spray pipe 5 to move horizontally. The support sleeve 7 cooperates with the guide rail 6 to support and guide the movement of the spray pipe 5. At the same time, the movable ball 11 rotates by friction with the guide rail 6, thereby reducing the moving resistance and improving the moving stability of the spray pipe 5 to perform uniform and stable cooling spray work. When the spray work is completed, turn off the water source. Under the action of the return spring 14, drive the guide rod 13 and the sealing plug 15 to reset, and the sealing plug 15 seals the bottom end of the nozzle 9.

[0028] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A temperature control device for curing deep foundation pit concrete, comprising two symmetrically arranged support frames (1), characterized in that: A spray pipe (5) is slidably connected between the two support frames (1) via a sliding assembly, the top surface of the spray pipe (5) is fixedly connected to a water inlet pipe (8) at both ends, and the bottom surface of the spray pipe (5) is fixedly connected to a group of spray heads (9), and a sealing mechanism (10) is provided on the bottom surface of the spray head (9), and the sealing mechanism (10) comprises a fixed frame (12), the fixed frame (12) is fixedly arranged inside the spray head (9), a guide rod (13) is provided through the middle of the fixed frame (12), a return spring (14) is sleeved on the outer side of the upper end of the guide rod (13), and a sealing plug (15) is fixedly connected to the bottom end of the guide rod (13), and the top surface of the sealing plug (15) is in contact with the bottom end surface of the spray head (9).

2. A temperature control device for deep foundation pit concrete curing as claimed in claim 1, characterized in that: The sliding assembly comprises two driving motors (2) fixedly arranged on the top surface of one of the supporting frames (1); the output end of the driving motor (2) is fixedly connected to a reciprocating screw (3); both sides of the reciprocating screw (3) are movably sleeved with support blocks, and the two support blocks are respectively fixed to the tops of the two supporting frames (1); the outer side of the reciprocating screw (3) is sleeved with a ball slider (4), and the spray pipe (5) is fixedly connected to the bottom of the two ball sliders (4).

3. A temperature control device for deep foundation pit concrete curing as claimed in claim 2, characterized in that: Two guide rails (6) are fixedly connected in the center of the opposite surfaces of the two support frames (1), and two support sleeves (7) are fixedly connected in the center of the top surface of the spray pipe (5), and the support sleeves (7) are slidably sleeved on the outer side of the guide rails (6).

4. A temperature control device for deep foundation pit concrete curing as claimed in claim 3, characterized in that: A plurality of movable balls (11) are movably connected to the inner side of the support sleeve (7).

Images