Well body anti-falling device

Abstract

The utility model relates to the technical field of well body falling prevention, in particular to a well body falling prevention device which comprises a base plate, a buffering mechanism and a filtering mechanism. The other end of the buffering mechanism is connected with the filtering mechanism; the buffering mechanism can stretch out and draw back in the vertical direction. Water leakage holes are formed in the filtering mechanism, and the water leakage holes and the buffering mechanism are arranged in a staggered mode in the horizontal plane. The chassis, the buffering mechanism and the filtering mechanism are sequentially arranged from bottom to top, the buffering mechanism between the chassis and the filtering mechanism can be effectively protected, water flow is prevented from directly impacting and corroding the buffering mechanism, and the service life of the buffering mechanism is prolonged. After the filtering mechanism is pressed, the buffering mechanism can stretch out and draw back in the vertical direction, that is, the buffering mechanism can directly stretch out and draw back in the elastic direction of the buffering mechanism, the elastic performance of the buffering mechanism is utilized to the maximum degree, people falling into a well are effectively buffered, and the impact damage of the well body anti-falling device to the people falling into the well is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of well body anti-falling, in particular to a well body anti-falling device. Background Art

[0002] In municipal engineering, wells are used to collect rainwater and sewage from the road. The wells have built-in water pumps that collect water to sewage treatment equipment for treatment, thereby effectively reducing surface water pressure on the road and ensuring normal traffic on the road.

[0003] A well body anti-fall device is usually installed in a water well. The well body anti-fall device is used to prevent pedestrians or well maintenance personnel from accidentally falling into the well, thereby improving the safety of the well. The existing well body anti-fall device includes an outer disk, an inner disk, a nylon net and a plurality of buffer springs. The outer disk is coaxially arranged with the inner disk, and a plurality of buffer springs are arranged along the circumference of the inner disk. The free ends of the plurality of buffer springs are connected to the inner wall of the outer disk; the inner wall of the inner disk is connected to the nylon net. Among them, the gap between the outer disk and the inner disk serves as a drain port and also allows the buffer spring to axially expand and contract; the nylon net is used to catch people who accidentally fall into the well, and cooperates with the buffer spring to achieve buffer protection for falling people.

[0004] However, the axial direction of the buffer spring intersects with the center of the inner disk, that is, the axis of the buffer spring is set parallel to the horizontal plane, which makes the buffer spring's buffering effect on the vertical force exerted by the falling person limited, that is, the well body fall prevention device has a poor buffering capacity against frontal impact force. In addition, the nylon net and multiple buffer springs are exposed to the water flow environment for a long time, which is easy to clog and corrode, resulting in the failure of the nylon net and buffer springs, posing a safety hazard. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a well body anti-fall device, which solves the technical problems that the existing well body anti-fall device has poor buffering ability against frontal impact force and is more likely to fail due to long-term exposure to water flow environment.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the well body anti-falling device of the utility model comprises a chassis, a buffer mechanism and a filtering mechanism;

[0009] One end of the buffer mechanism is connected to the chassis, and the other end is connected to the filter mechanism; the buffer mechanism can be extended and retracted in the vertical direction;

[0010] The filter mechanism is provided with a water leakage hole, and the water leakage hole and the buffer mechanism are arranged in a staggered manner in a horizontal plane.

[0011] Optionally, the filtering mechanism comprises a filtering seat, a filtering cover and a filtering net;

[0012] The filter cover is arranged on the top of the filter seat, and the two surround a cavity;

[0013] The filter is built into the cavity;

[0014] The filter cover is provided with a plurality of through holes; the bottom plate of the filter seat is provided with a plurality of water leakage holes.

[0015] Optionally, a trapezoidal annular groove is provided at the top of the filter seat;

[0016] The filter cover is placed on the trapezoidal annular groove.

[0017] Optionally, the buffer mechanism includes a buffer seat, a damping spring, a buffer plate and a buffer rod;

[0018] One end of the damping spring is connected to the bottom plate of the buffer seat, and the other end is connected to the bottom surface of the buffer plate;

[0019] The buffer plate is built into the buffer seat;

[0020] One end of the buffer rod passes through the buffer seat and is connected to the top surface of the buffer plate, and the other end is connected to the filter mechanism.

[0021] Optionally, the buffer mechanism further comprises a support plate, a fixing rod and a plurality of support rods;

[0022] The bottom surface of the support plate is connected to the buffer rod;

[0023] One end of the fixing rod and one end of the supporting rod are both connected to the top surface of the supporting plate; the other end of the fixing rod and the other end of the supporting rod are both connected to the filtering mechanism;

[0024] A plurality of support rods are arranged around the fixing rod.

[0025] Optionally, the distance between the top end of the support rod and the axis of the fixing rod is not less than the distance between the bottom end of the support rod and the axis of the fixing rod.

[0026] Optionally, the chassis includes an outer plate, an inner plate and a plurality of connecting rods;

[0027] The outer disk and the inner disk are coaxially arranged and connected by the connecting rod;

[0028] A plurality of connecting rods are arranged along the circumference of the inner disk;

[0029] The buffer mechanism is arranged on the inner disk.

[0030] Optionally, a plurality of drainage ports are provided on the inner plate;

[0031] A plurality of the drainage ports are arranged around the axis of the inner plate;

[0032] The drain port is in a hole shape or an arc shape.

[0033] Optionally, a drainage ring opening is provided on the inner plate;

[0034] The top and bottom ends of the drainage ring opening are both provided with leakage nets.

[0035] Optionally, a plurality of L-shaped connecting blocks are arranged on the circumference of the outer disk;

[0036] The L-shaped connecting block is provided with connecting bolts.

[0037] (III) Beneficial effects

[0038] The beneficial effects of the utility model are:

[0039] The chassis, buffer mechanism and filter mechanism are arranged in sequence from bottom to top, which can effectively protect the buffer mechanism between the chassis and the filter mechanism, prevent water flow from directly impacting and corroding the buffer mechanism, and extend the service life of the buffer mechanism. After the filter mechanism is pressurized, the buffer mechanism can be expanded and contracted in the vertical direction, that is, the buffer mechanism can be expanded and contracted directly in its elastic direction, maximizing the elastic performance of the buffer mechanism to effectively buffer the person who falls into the well, and reduce the impact damage of the well body fall prevention device on the person who falls into the well.

[0040] The filtering mechanism filters the water flow and filters out large particles of impurities in the water flow, effectively preventing the large particles from clogging the buffer mechanism, allowing the buffer mechanism to maintain its elastic performance for a long time and improving the safety of the well body fall prevention device.

[0041] Water flows out from the leakage hole of the filter mechanism and falls naturally. By staggering the leakage hole and the buffer mechanism in the horizontal plane, the water flowing out through the leakage hole will not drip directly on the buffer mechanism, thus avoiding the buffer mechanism from being soaked in water and further extending the service life of the buffer mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of the well body anti-fall device of the utility model;

[0043] Figure 2 It is a structural schematic diagram of the filtering mechanism of the utility model;

[0044] Figure 3 It is a structural schematic diagram of the buffer mechanism of the utility model;

[0045] Figure 4It is a structural schematic diagram of the chassis of the utility model.

[0046] [Description of Reference Numerals]

[0047] 1: chassis; 11: outer plate; 111: L-shaped connecting block; 112: connecting bolt; 12: inner plate; 121: leakage net; 13: connecting rod;

[0048] 2: buffer mechanism; 21: buffer seat; 22: damping spring; 23: buffer plate; 24: buffer rod; 25: support plate; 26: fixing rod; 27: support rod;

[0049] 3: filter mechanism; 31: filter seat; 311: water leakage hole; 312: trapezoidal ring groove; 32: filter cover; 321: through hole; 33: filter net. DETAILED DESCRIPTION

[0050] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0051] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] See also Figure 1 and Figure 2The utility model provides a well body anti-fall device, which includes a chassis 1, a buffer mechanism 2 and a filter mechanism 3; one end of the buffer mechanism 2 is connected to the chassis 1, and the other end is connected to the filter mechanism 3; the buffer mechanism 2 can be extended and retracted in the vertical direction; a water leakage hole 311 is provided on the filter mechanism 3, and the water leakage hole 311 and the buffer mechanism 2 are staggered in the horizontal plane, and the staggered setting means that the projection of the water leakage hole 311 and the buffer mechanism 2 on the top surface of the chassis 1 do not intersect. In this embodiment, the chassis 1 is a traditional hub-type structure, and water can flow out from the internal gap of the chassis 1. The chassis 1 is engaged in the groove on the inner wall of the well body, and the chassis 1 is supported and limited by the groove.

[0055] The chassis 1, the buffer mechanism 2 and the filter mechanism 3 are arranged in sequence from bottom to top, which can effectively protect the buffer mechanism 2 between the chassis 1 and the filter mechanism 3, prevent the water flow from directly impacting and corroding the buffer mechanism 2, and extend the service life of the buffer mechanism 2. After the filter mechanism 3 is compressed, the buffer mechanism 2 can be stretched in the vertical direction, that is, the buffer mechanism 2 can be stretched directly in its elastic direction, maximizing the elastic performance of the buffer mechanism 2 to effectively buffer the person who falls into the well, and reduce the impact damage of the well body fall prevention device on the person who falls into the well.

[0056] The filter mechanism 3 filters the water flow and filters out large particles of impurities in the water flow, effectively preventing the large particles from clogging the buffer mechanism 2, so that the buffer mechanism 2 can maintain its elastic performance for a long time and improve the safety of the well body fall prevention device.

[0057] Water flows out from the leakage hole 311 of the filter mechanism 3 and falls naturally. By staggering the leakage hole 311 and the buffer mechanism 2 in the horizontal plane, the water flowing out through the leakage hole 311 will not drip directly onto the buffer mechanism 2, thereby avoiding the buffer mechanism 2 from being immersed in water and further extending the service life of the buffer mechanism 2.

[0058] See also Figure 2 , the filter mechanism 3 includes a filter seat 31, a filter cover 32 and a filter net 33; the filter cover 32 is arranged at the top of the filter seat 31, and the two form a cavity; the filter net 33 is built into the cavity; a plurality of through holes 321 are provided on the filter cover 32; a plurality of water leakage holes 311 are provided on the bottom plate of the filter seat 31. Specifically, the filter net 33 is arranged horizontally and connected to the inner wall of the filter seat 31. The water flows out from the water leakage holes 311 through the through holes 321 and the filter net 33 in turn, drips onto the chassis 1, and then flows out from the gap of the chassis 1. By arranging the filter net 33 inside the cavity, the filter residue is trapped inside the cavity, thereby avoiding the situation where large particles of impurities block the buffer mechanism 2. The specific number of water leakage holes 311 and the buffer mechanism 2 can be staggered according to actual needs.

[0059] Furthermore, a trapezoidal annular groove 312 is provided at the top of the filter seat 31; the filter cover 32 is placed on the trapezoidal annular groove 312. Specifically, the trapezoidal annular groove 312 includes a first annular groove and a second annular groove, the second annular groove is provided below the first annular groove, and the inner diameter of the second annular groove is smaller than the inner diameter of the first annular groove. The outer wall of the filter cover 32 abuts against the inner wall of the first annular groove, and the bottom surface of the filter cover 32 abuts against the top surface of the second annular groove, thereby realizing a detachable connection between the filter seat 31 and the filter cover 32, which is convenient for the water well maintenance personnel to clean the filter residue later.

[0060] like Figure 3 As shown, the buffer mechanism 2 includes a buffer seat 21, a damping spring 22, a buffer plate 23 and a buffer rod 24; one end of the damping spring 22 is connected to the bottom plate of the buffer seat 21, and the other end is connected to the bottom surface of the buffer plate 23; the buffer plate 23 is built into the buffer seat 21; one end of the buffer rod 24 passes through the buffer seat 21 and is connected to the top surface of the buffer plate 23, and the other end is connected to the filter mechanism 3. Specifically, the buffer seat 21 is a shell structure, which can effectively prevent external water from entering the buffer seat 21, thereby protecting the internal damping spring 22. The specific number of the damping springs 22 is set according to the buffering requirements. A plurality of damping springs 22 are arranged below the buffer plate 23. The force is evenly distributed to the plurality of damping springs 22 through the buffer plate 23. The plurality of damping springs 22 are extended and retracted along their own axis, making full use of the elastic performance of the buffer mechanism 2. Compared with the traditional method of setting the axis of the buffer spring parallel to the horizontal plane, the axis of the damping spring 22 is set vertically to directly buffer the impact force in the vertical direction, which has higher buffering efficiency and effectively extends the service life of the well body fall prevention device.

[0061] Secondly, the buffer mechanism 2 further includes a support plate 25, a fixing rod 26 and a plurality of supporting rods 27; the bottom surface of the support plate 25 is connected to the buffer rod 24; one end of the fixing rod 26 and one end of the supporting rod 27 are both connected to the top surface of the support plate 25; the other end of the fixing rod 26 and the other end of the supporting rod 27 are both connected to the filter mechanism 3; and the plurality of supporting rods 27 are arranged around the fixing rod 26. Compared with the method in which the filter mechanism 3 directly transmits the impact force to the buffer rod 24, the plurality of supporting rods 27 are arranged around the fixing rod 26, thereby increasing the force bearing area between the filter mechanism 3 and the buffer rod 24, thereby enhancing the structural strength of the buffer mechanism 2 and the stability of force transmission, and further extending the service life of the buffer mechanism 2.

[0062] In addition, the distance between the top of the support rod 27 and the axis of the fixed rod 26 is not less than the distance between the bottom of the support rod 27 and the axis of the fixed rod 26. That is, the support rod 27 is tilted, and a truncated cone structure is formed between the filter mechanism 3, the support plate 25 and the plurality of support rods 27, and the truncated cone structure is inverted, so that the force transmitted from all directions by the filter mechanism 3 can be concentrated to a position close to the center of the support plate 25, that is, the force is transmitted to the top of the buffer plate 23, and the force is efficiently buffered in cooperation with the plurality of damping springs 22. Of course, the support rod 27 can also be vertically arranged just above the buffer plate 23.

[0063] like Figure 4 As shown, the chassis 1 includes an outer disc 11, an inner disc 12 and a plurality of connecting rods 13; the outer disc 11 and the inner disc 12 are coaxially arranged and connected by the connecting rod 13; the plurality of connecting rods 13 are arranged along the circumference of the inner disc 12; and the buffer mechanism 2 is arranged on the inner disc 12. The outer disc 11, the inner disc 12 and the plurality of connecting rods 13 form a hub structure, and the water flow can flow out from the gaps between the plurality of connecting rods 13. The traditional method is to arrange the nylon net at the center of the inner disc 12, and use the elasticity of the nylon net and the buffer spring for buffering, but the nylon net is exposed to the water flow for a long time, which is easy to cause the nylon net to be blocked and corroded, and the service life is short. The utility model arranges the buffer mechanism 2 and the filter mechanism 3 at the center of the inner disc 12, and the filter mechanism 3 guides the water flow and filters out large particles of impurities. The water flow will not directly flush the buffer mechanism 2, so that the buffer mechanism 2 can work normally for a long time and ensure the safety of the well body.

[0064] In one embodiment, a plurality of drainage ports are provided on the inner disk 12; the plurality of drainage ports are arranged around the axis of the inner disk 12; the drainage ports are hole-shaped or arc-shaped. Since the drainage channel (i.e., the position of the hub) of the well body anti-fall device will be blocked after the person who falls into the well falls into the well, the drainage performance of the well body anti-fall device will be reduced. In heavy rain weather, after the person who falls into the well falls into the well, the fluidity of the water flow in the well body is reduced, and the well body has a situation where the amount of water entering the well body is greater than the amount of water discharged. If the water is not discharged in time, the water level may rise and cause the person who falls into the well to drown. Based on this, a plurality of drainage ports are provided on the inner disk 12, and the lifting stroke of the filter mechanism 3 is limited by the buffer seat 21, and sufficient drainage space is reserved between the filter mechanism 3 and the chassis 1. Even if the person who falls into the well completely blocks the hub position, the water flow can flow out of the drainage port through the leaking hole 311 and the drainage space, ensuring the efficient drainage of the well body anti-fall device in heavy rain weather after the person who falls into the well falls into the well, and further improving the safety of the use of the well body anti-fall device.

[0065] In another embodiment, a drainage ring is provided on the inner plate 12; a leakage net 121 is provided at the top and bottom of the drainage ring. The inner plate 12 includes a coaxially arranged sub-plate and a mother plate, the sub-plate is arranged on the inner side of the mother plate, and the sub-plate and the mother plate are connected by the leakage net 121. The sub-plate and the mother plate are connected by the leakage net 121, which effectively improves the drainage capacity of the inner plate 12 and further improves the adaptability of the well body anti-fall device to drainage in rainstorm weather. Optionally, a plurality of reinforcing rods are provided between the sub-plate and the mother plate to improve the connection stability of the sub-plate and the mother plate, and the support stability of the sub-plate to the buffer mechanism 2 and the filter mechanism 3.

[0066] In addition, a plurality of L-shaped connecting blocks 111 are arranged on the circumference of the outer disk 11; connecting bolts 112 are arranged on the L-shaped connecting blocks 111. In this embodiment, an L-shaped connecting groove is correspondingly provided on the inner wall of the well body, and the L-shaped connecting block 111 is adapted to the shape and size of the L-shaped connecting groove, and the two are fixedly connected by connecting bolts 112; the outer disk 11 is engaged in the groove provided on the inner wall of the well body. The connection structure of the outer disk 11 is simple, practical, and highly reliable, and is easy to disassemble and repair after the well body anti-fall device is damaged.

[0067] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A well body fall prevention device, characterized in that: The well body fall prevention device comprises a chassis (1), a buffer mechanism (2) and a filter mechanism (3); One end of the buffer mechanism (2) is connected to the chassis (1), and the other end is connected to the filter mechanism (3); the buffer mechanism (2) is capable of extending and retracting in the vertical direction; The filtering mechanism (3) is provided with a water leakage hole (311), and the water leakage hole (311) and the buffer mechanism (2) are arranged offset in a horizontal plane.

2. The well body fall prevention device according to claim 1, characterized in that: The filtering mechanism (3) comprises a filtering seat (31), a filtering cover (32) and a filtering net (33); The filter cover (32) is arranged on the top end of the filter seat (31), and the two surround a cavity; The filter screen (33) is built into the cavity; The filter cover (32) is provided with a plurality of through holes (321); and the bottom plate of the filter seat (31) is provided with a plurality of water leakage holes (311).

3. The well body fall prevention device according to claim 2, characterized in that: A trapezoidal annular groove (312) is provided at the top end of the filter seat (31); The filter cover (32) is placed on the trapezoidal annular groove (312).

4. The well body fall prevention device according to any one of claims 1 to 3, characterized in that: The buffer mechanism (2) comprises a buffer seat (21), a damping spring (22), a buffer plate (23) and a buffer rod (24); One end of the damping spring (22) is connected to the bottom plate of the buffer seat (21), and the other end is connected to the bottom surface of the buffer plate (23); The buffer plate (23) is built into the buffer seat (21); One end of the buffer rod (24) passes through the buffer seat (21) and is connected to the top surface of the buffer plate (23), and the other end is connected to the filter mechanism (3).

5. The well body fall prevention device according to claim 4, characterized in that: The buffer mechanism (2) further comprises a support plate (25), a fixing rod (26) and a plurality of support rods (27); The bottom surface of the support plate (25) is connected to the buffer rod (24); One end of the fixing rod (26) and one end of the supporting rod (27) are both connected to the top surface of the supporting plate (25); the other end of the fixing rod (26) and the other end of the supporting rod (27) are both connected to the filtering mechanism (3); A plurality of support rods (27) are arranged around the fixing rod (26).

6. The well body fall prevention device according to claim 5, characterized in that: The distance between the top end of the support rod (27) and the axis of the fixing rod (26) is not less than the distance between the bottom end of the support rod (27) and the axis of the fixing rod (26).

7. The well body fall prevention device according to any one of claims 1 to 3, characterized in that: The chassis (1) comprises an outer chassis (11), an inner chassis (12) and a plurality of connecting rods (13); The outer disk (11) and the inner disk (12) are coaxially arranged and connected via the connecting rod (13); A plurality of connecting rods (13) are arranged along the circumference of the inner plate (12); The buffer mechanism (2) is arranged on the inner plate (12).

8. The well body fall prevention device according to claim 7, characterized in that: The inner plate (12) is provided with a plurality of drainage openings; A plurality of drainage ports are arranged around the axis of the inner plate (12); The drain port is in a hole shape or an arc shape.

9. The well body fall prevention device according to claim 7, characterized in that: The inner plate (12) is provided with a drainage ring opening; The top and bottom ends of the drainage ring opening are both provided with leakage nets (121).

10. The well body fall prevention device according to claim 7, characterized in that: A plurality of L-shaped connecting blocks (111) are arranged on the circumference of the outer disk (11); The L-shaped connecting block (111) is provided with connecting bolts (112).

Images