Anti-freezing lifting type height limiting frame

Abstract

The utility model discloses an anti-freezing lifting type height limiting frame, and mainly relates to the field of height limiting frames. Comprising a frame body, height limiting rods are slidably connected to the frame body in the vertical direction, sliding grooves are formed in the two sides of the frame body, the ends of the height limiting rods are slidably connected into the sliding grooves, hydraulic rods are arranged in the sliding grooves, the movable ends of the hydraulic rods are connected with the bottoms of the height limiting rods, heating boxes are arranged at the bottoms of the sliding grooves, and air inlet fans and heating pipes are arranged in the heating boxes; a plurality of air inlet pipes are arranged on the side wall of the heating box, a baffle is arranged at the top of the heating box and arranged outside the hydraulic rod in a sleeving mode, and a plurality of air outlet pipes extending into the baffle are arranged at the top of the heating box. The lifting type height limiting frame has the advantages that the technical problem that normal use of the lifting type height limiting frame is affected due to the fact that the lifting function of the lifting type height limiting frame is blocked in the low-temperature state can be solved, normal flowing of hydraulic oil in the hydraulic rod is guaranteed, lifting smoothness of the hydraulic rod in the low-temperature state is guaranteed, and adaptability of the lifting type height limiting frame to the low-temperature environment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of height-limiting frames, in particular to an anti-freezing lifting height-limiting frame. Background Art

[0002] Height limit frames are used to limit the height of passing vehicles. In order to meet the traffic needs of different periods and road sections, many existing height limit frames are equipped with lifting functions, making the use of height limit frames more flexible and convenient. These height limit frames with lifting functions generally use hydraulic rods as lifting power, making the lifting operation more convenient and stable. However, when encountering extreme rainy and snowy weather that causes a sudden drop in temperature or when used in areas with large temperature differences, the hydraulic oil inside the hydraulic rod and the connection between the movable end of the hydraulic rod and the body can easily be blocked due to low temperatures, causing the lifting function to be obstructed. Especially in extreme weather conditions, the traffic needs of the road are likely to change. At this time, it is more likely that the height limit of the height limit frame will be adjusted, resulting in interference with the normal use of the existing lifting height limit frame in low temperature weather or areas, limiting the scope of use of the lifting height limit frame. Utility Model Content

[0003] The purpose of the utility model is to provide an anti-freeze type lifting height limit frame, which can solve the technical problem that the lifting function of the lifting height limit frame is blocked under low temperature conditions and affects its normal use, realizes rapid heating and temperature recovery of the hydraulic rod when the temperature drops suddenly, ensures the normal flow of hydraulic oil inside the hydraulic rod, ensures the smoothness of the lifting and lowering of the hydraulic rod under low temperature conditions, and greatly improves the adaptability of the lifting height limit frame to low temperature environments.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0005] A freeze-proof lifting height limit frame includes a frame body, which is vertically slidably connected to a height limit rod, and slide grooves are provided on both sides of the frame body. Notches are provided on the side walls of the slide grooves, and the end of the height limit rod passes through the notch and is slidably connected to the slide groove. A hydraulic rod is provided in the slide groove, and the movable end of the hydraulic rod is connected to the bottom of the height limit rod. A heating box is provided at the bottom of the slide groove, and an intake fan and a heating pipe are provided inside the heating box. A plurality of air intake pipes extending to the outside of the frame body are provided on the side walls of the heating box, and a baffle is provided on the top of the heating box. The baffle is sleeved on the outside of the hydraulic rod, and a plurality of air outlet pipes extending to the inside of the baffle are provided on the top of the heating box.

[0006] Furthermore, a guide column is provided in the slide groove, and the guide column passes through the height limiting rod and is slidably connected thereto.

[0007] Furthermore, the baffle is arranged outside the hydraulic rod and the guide column.

[0008] Furthermore, an interlayer is provided inside the baffle, the air outlet pipe extends into the interlayer, and a plurality of heating holes are provided on the side wall of the interlayer facing the hydraulic rod.

[0009] Furthermore, the heating boxes are symmetrically arranged on both sides of the hydraulic rod, and the air outlet pipes in the heating boxes on both sides extend to the inside of the baffle.

[0010] Furthermore, the top of the baffle extends to the movable end of the hydraulic rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model provides slides on both sides of the frame, and the height limit rod passes through the notch on the side wall of the slide and is slidably connected in the slide. A hydraulic rod for driving the height limit rod to move up and down is provided in the slide, and a heating box is provided at the bottom of the slide. An intake fan and a heating pipe are provided in the heating box. The intake fan is used to introduce external air into the heating box, and the hot air is sent into the slide after being heated by the heating pipe, so that the temperature of the hydraulic rod in the slide is increased. When used in extreme weather or low temperature areas, the normal flow of hydraulic oil in the hydraulic rod can be guaranteed, so that the movable end of the hydraulic rod will not freeze with the body of the hydraulic rod, thereby ensuring the normal operation of its lifting function and improving the adaptability of the lifting height limit frame to low temperature environments.

[0013] 2. A baffle is provided in the chute, and the baffle is sleeved on the outside of the hydraulic rod. The outlet pipe on the heating box extends to the inside of the baffle. This structure allows the outside of the hydraulic rod to be wrapped by the baffle, so that the hot air enters the inside of the baffle and performs more concentrated heating treatment on the hydraulic rod, reducing the speed of hot air escaping to the outside, and further improving the efficiency of heating and warming the hydraulic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 It is a three-dimensional structural diagram of the utility model.

[0015] Attachment Figure 2 It is a front view of the present utility model.

[0016] Attachment Figure 3 This utility model is attached Figure 2 Cross-sectional view in the AA direction.

[0017] Attachment Figure 4 This utility model is attached Figure 3 Cross-sectional view in the BB direction.

[0018] Attachment Figure 5 This utility model is attached Figure 3 A partial enlarged view of part C in the middle.

[0019] Reference numerals shown in the accompanying drawings:

[0020] 1. Frame; 2. Height limit rod; 3. Slide; 4. Notch; 5. Hydraulic rod; 6. Heating box; 7. Inlet fan; 8. Heating pipe; 9. Inlet pipe; 10. Baffle; 11. Outlet pipe; 12. Guide column; 13. Interlayer; 14. Heating hole. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.

[0022] Reference Figure 1 and Figure 2The utility model is an antifreeze type lifting height limit frame, the main structure includes a frame 1, the frame 1 is generally gantry type, and the bottoms on both sides are fixed to the ground by pre-embedded concrete. The frame 1 is vertically slidably connected to the height limit rod 2, and the height limit rod 2 extends horizontally. The height limit rod 2 is the main component of the height limit, generally made of metal to ensure sufficient structural strength. Obvious reflective or reminder marks are set on it to improve the conspicuousness when the sight line is poor or at night. Both sides of the frame 1 are provided with slide grooves 3, and the slide grooves 3 are arranged inside the frame 1. The side walls of the slide grooves 3 are provided with notches 4 The chute 3 is connected to the outside through the notch 4, and the end of the height limiting rod 2 passes through the notch 4 and is slidably connected to the chute 3. This structure makes the up and down sliding structure of the height limiting rod 2 more accurate and stable. A hydraulic rod 5 is provided in the chute 3. The hydraulic rod 5 can adopt any structure driven by hydraulic oil on the existing market. The movable end of the hydraulic rod 5 is connected to the bottom of the height limiting rod 2 by welding or bolts, and the telescopic movement of the hydraulic rod 5 is realized to smoothly drive the up and down movement of the height limiting rod 2, making the lifting movement of the height limiting rod 2 more accurate and stable. A heating box 6 is provided at the bottom of the chute 3. The heat box 6 is a box structure with a hollow interior. An inlet fan 7 and a heating pipe 8 are provided inside the heating box 6. The inlet fan 7 can introduce external air into the heating box 6. The heating pipe 8 generally adopts a threaded pipe and can heat the introduced air after being powered on. A plurality of inlet pipes 9 extending to the outside of the frame 1 are provided on the side wall of the heating box 6. The inlet fan 7 is used to smoothly introduce the air outside the chute 3 into the heating box 6 to ensure the smoothness of air circulation. A baffle 10 is welded or bolted on the top of the heating box 6. The cross section of the baffle 10 is in the shape of a circle. The baffle 10 is sleeved on the outside of the hydraulic rod 5. The hydraulic rod 5 is arranged inside the U-shaped part, and the space around the hydraulic rod 5 is surrounded by a baffle 10. The top of the heating box 6 is provided with a plurality of air outlet pipes 11 extending to the inside of the baffle 10. The air outlet pipe 11 is used to introduce the hot air heated by the heating tube 8 into the inside of the baffle 10, thereby quickly heating the hydraulic rod 5 inside the baffle 10, thereby reducing the speed of hot air overflowing outward, improving the heating and temperature recovery efficiency of the hydraulic rod 5, ensuring the normal flow of hydraulic oil inside the hydraulic rod 5, realizing the normal lifting of the lifting height limit frame in low temperature weather or environment, and improving the adaptability to low temperature environment.

[0023] Preferably, a guide column 12 is welded or bolted in the slide groove 3, and the guide column 12 passes through the height limit rod 2 and is slidably connected thereto. The setting of the guide column 12 can guide the up and down sliding of the height limit rod 2, so that the height limit rod 2 ensures the horizontality of the lifting process, thereby making the lifting structure of the height limit rod 2 more stable and ensuring the accuracy of the height limit control.

[0024] Preferably, refer to Figure 4The baffle 10 is arranged on the outside of the hydraulic rod 5 and the guide column 12. This structure enables the hot air to heat the hydraulic rod 5 and the guide column 12 at the same time, so that the connection between the guide column 12 and the height limit rod 2 will not be frozen due to the low temperature, thereby ensuring the smoothness of the up and down movement of the height limit rod 2 in a low temperature environment.

[0025] Preferably, refer to Figure 3 and Figure 5 A interlayer 13 is provided inside the baffle 10, and the air outlet pipe 11 extends into the interlayer 13. A plurality of heating holes 14 are provided on the side wall of the interlayer 13 facing the hydraulic rod 5. This arrangement allows the hot air inside the heating box 6 to be introduced into the interlayer 13 through the air outlet pipe 11, and then blown evenly to various positions of the hydraulic rod 5 through the plurality of heating holes 14 on the side wall of the interlayer 13, thereby further avoiding the overflow speed of the hot air, achieving targeted heating of the hydraulic rod 5, and further improving the efficiency of the hydraulic rod 5 in recovering temperature.

[0026] Preferably, the heating box 6 is symmetrically arranged on both sides of the hydraulic rod 5, and the air outlet pipes 11 in the heating boxes 6 on both sides extend to the inside of the baffle 10. Such a structure can make full use of the space at the bottom of the slide 3, improve the air intake efficiency of the heating box 6, and make the hot air generation speed faster, thereby improving the efficiency of heating and returning the hydraulic rod 5 to a temperature.

[0027] Preferably, the top of the baffle 10 extends to the movable end of the hydraulic rod 5. This structure allows the hot air to not only blow to the position where the hydraulic oil is located on the main body of the hydraulic rod 5, but also to heat the position where the movable end is connected to the main body differently, thereby avoiding freezing of the connection between the movable end and the main body of the hydraulic rod 5, thereby ensuring the smoothness of the up and down movement of the movable end of the hydraulic rod 5 relative to the main body.

[0028] Working principle: The utility model is provided with a slide 3 on both sides of the frame 1, and the height limiting rod 2 passes through the notch 4 on the side wall of the slide 3 and is slidably connected in the slide 3. A hydraulic rod 5 for driving the height limiting rod 2 up and down is provided in the slide 3. A heating box 6 is provided at the bottom of the slide 3, and an intake fan 7 and a heating pipe 8 are provided in the heating box 6. The intake fan 7 is used to introduce external air into the heating box 6, and the hot air is sent into the slide 3 after being heated by the heating pipe 8, so that the temperature of the hydraulic rod 5 in the slide 3 rises, so that when used in extreme weather or low temperature areas, the hydraulic oil in the hydraulic rod 5 can be ensured. Normal flow prevents the movable end of the hydraulic rod 5 from freezing to the body of the hydraulic rod 5, ensuring the normal operation of its lifting function and improving the adaptability of the lifting height limit frame to low temperature environment; a baffle 10 is provided in the slide 3, and the baffle 10 is sleeved on the outside of the hydraulic rod 5. The air outlet pipe 11 on the heating box 6 extends to the inside of the baffle 10. Such a structure can make the outside of the hydraulic rod 5 wrapped by the baffle 10, so that the hot air enters the inside of the baffle 10 and performs more concentrated heating treatment on the hydraulic rod 5, reducing the speed of the hot air spreading outward, and further improving the efficiency of heating and warming the hydraulic rod 5.

Claims

1. An antifreeze type lifting height limit frame, comprising a frame body (1), wherein the frame body (1) is vertically slidably connected to a height limit rod (2), and is characterized in that: Both sides of the frame (1) are provided with a slide groove (3), and a notch (4) is provided on the side wall of the slide groove (3). The end of the height limiting rod (2) passes through the notch (4) and is slidably connected to the slide groove (3). A hydraulic rod (5) is provided in the slide groove (3), and the movable end of the hydraulic rod (5) is connected to the bottom of the height limiting rod (2). A heating box (6) is provided at the bottom of the slide groove (3), and an intake fan (7) and a heating pipe (8) are provided inside the heating box (6). A plurality of air intake pipes (9) extending to the outside of the frame (1) are provided on the side wall of the heating box (6). A baffle (10) is provided on the top of the heating box (6), and the baffle (10) is sleeved on the outside of the hydraulic rod (5). A plurality of air outlet pipes (11) extending to the inside of the baffle (10) are provided on the top of the heating box (6).

2. The antifreeze lift height limit frame according to claim 1, characterized in that: A guide column (12) is provided in the slide groove (3), and the guide column (12) passes through the height-limiting rod (2) and is slidably connected thereto.

3. The antifreeze lift height limit frame according to claim 2, characterized in that: The baffle (10) is arranged outside the hydraulic rod (5) and the guide column (12).

4. The antifreeze lift height limit frame according to claim 1, characterized in that: An interlayer (13) is provided inside the baffle (10), the air outlet pipe (11) extends into the interlayer (13), and a plurality of heating holes (14) are provided on the side wall of the interlayer (13) facing the hydraulic rod (5).

5. The antifreeze lift height limit frame according to claim 1, characterized in that: The heating boxes (6) are symmetrically arranged on both sides of the hydraulic rod (5), and the air outlet pipes (11) in the heating boxes (6) on both sides extend to the inside of the baffle (10).

6. The antifreeze lift height limit frame according to claim 1, characterized in that: The top of the baffle (10) extends to the movable end of the hydraulic rod (5).

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