Mechanical sludge level gauge

Abstract

The present invention provides a mechanical sludge level gauge, which includes a scale and a sliding self-locking device; the sliding self-locking device is installed on the scale and can slide along the length direction of the scale. The sliding self-locking device includes a contact plate, a steel pipe, a first support member, a clamping plate, a fixed shaft, and a compression spring; the steel pipe is sleeved on the scale, and there is a first notch in the middle of the steel pipe; one end of the steel pipe is connected to the contact plate; the fixed shaft is installed on the first support member. One end of the clamping plate is connected to one end of the compression spring, the other end of the clamping plate passes through the first notch, and the clamping plate can rotate along the fixed shaft; the other end of the compression spring is installed on the steel pipe. Through the design of the sliding self-locking device, the present invention can lock the contact plate on the scale, avoiding the problem that when reading the measurement rod, the silt mark is washed away by the water flow, and accurate, intuitive, and effective reading cannot be achieved.

Description

Technical Field

[0001] The present invention relates to the field of measurement, and in particular, to a mechanical sludge level gauge, and more particularly, to the measurement of the sludge thickness in inspection wells of municipal pipe networks, and even more particularly, to an artificial mechanical device for measuring the sediment deposition thickness in inspection wells of rainwater and sewage pipe networks. Background Art

[0002] Municipal rain and sewage pipe networks and inspection wells are important components of the urban drainage system. During use, sediment will accumulate in the pipe networks and inspection wells over time, forming sludge. Excessive sludge will affect the normal operation of the drainage system, reduce the pipe network volume ratio, and in severe cases, block the pipes, causing sewage to overflow and forming environmental pollution incidents, and at the same time affecting the flood control safety during the flood season.

[0003] To formulate a reasonable dredging plan, it is necessary to provide data on the sludge in the inspection wells of the pipe network as a support. The pipe network is operated by a third party entrusted by the government, and operation and maintenance standards will be set. For example, the sludge thickness in the inspection wells of the pipe network should be within the allowable range of the pipe diameter. It is particularly important to formulate a reasonable pipe network dredging plan according to the sludge degree in the inspection wells of the pipe network. Currently, there are few sludge level gauges suitable for measuring the sludge in the inspection wells of the pipe network, so it has become a difficult problem to obtain the sludge data in the inspection wells of the pipe network.

[0004] Most of the existing measuring rods are long rods marked with scales or alternating red and white colors. When lifting the measuring rod to read the value, the water flow is likely to wash away the traces of the sludge, making it impossible to read accurately, intuitively, and effectively; the sludge level gauge used to test the sludge in the secondary sedimentation tank of the sewage treatment plant cannot penetrate the caked sludge layer in the pipeline, and the organic glass material is not suitable for pipelines with a large water flow; the electronic measuring instruments are costly and there is also a possibility of electronic circuit failure.

[0005] Patent document CN104613880A discloses an optoelectronic sludge thickness measuring instrument and its measuring method. The technical solution adopted includes a housing bottom plate and a housing top plate that are parallel to each other, and a transmitting plate housing and a receiving plate housing that are perpendicular to them are arranged therebetween. A transmitting plate is embedded in the transmitting plate housing, and a receiving plate is embedded in the receiving plate housing; a plurality of light-emitting diodes are equidistantly distributed on the transmitting plate, the light-emitting diodes are embedded in the transmitting plate, and the transmitting plate is sealed on the transmitting plate housing with waterproof glue; a plurality of photosensitive triodes are equidistantly distributed on the receiving plate, the photosensitive triodes are embedded in the receiving plate, and the receiving plate is sealed on the receiving plate housing with waterproof glue; the lamp heads of the light-emitting diodes and the photosensitive triodes correspond one by one. However, this solution has a complex structure and a high cost for designing the electronic circuit structure. Summary of the Invention

[0006] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a mechanical sludge level gauge.

[0007] A mechanical sludge level gauge provided according to the present invention includes a scale and a sliding self-locking device; the sliding self-locking device is installed on the scale and can slide along the length direction of the scale.

[0008] Preferably, the sliding self-locking device includes a contact plate, a steel pipe, a first support member, a clamping plate, a fixed shaft, and a compression spring;

[0009] The steel pipe is sleeved on the scale, and there is a first notch in the middle of the steel pipe;

[0010] One end of the steel pipe is connected to the contact plate;

[0011] The fixed shaft is installed on the first support member, and both ends of the first support member are respectively connected to the contact plate and the steel pipe;

[0012] The clamping plate includes a bending portion that bends towards the scale. One end of the clamping plate is connected to one end of the compression spring. The other end of the clamping plate passes through the first notch, and the clamping plate can rotate along the fixed shaft; the other end of the compression spring is installed on the steel pipe.

[0013] Preferably, the clamping plate further includes a first workpiece and a second workpiece; one end of the first workpiece is connected to the compression spring, and the other end of the first workpiece is connected to one end of the second workpiece through the bending portion;

[0014] The first workpiece can rotate along the fixed shaft; the other end of the second workpiece passes through the first notch.

[0015] Preferably, a plurality of tooth grooves are provided on one side of the scale close to the first notch, and the plurality of tooth grooves are arranged along the length direction of the scale; scale lines are provided on the other side of the scale; the other end of the clamping plate is matched with the tooth grooves.

[0016] Preferably, one end of the scale has a spike structure.

[0017] Preferably, a first contact surface is provided at the bottom of the contact plate, and the first contact surface is a mating surface adapted to the sludge in the well.

[0018] Preferably, it further includes an extension rod; the extension rod is installed on the scale, and the number of the extension rods is one or more;

[0019] Both ends of the extension rod respectively have a first installation structure and a second installation structure, and the first installation structure and the second installation structure can be matched;

[0020] The first installation structure is used to connect the extension rod to the scale, or

[0021] Matched with the second installation structure for connection between multiple extension rods.

[0022] Preferably, it further includes an anti-collision structure which is installed on the steel pipe to prevent the clamping plate and / or the spring from being accidentally touched.

[0023] Preferably, the contact plate is a triangular steel plate with a central hole drilled; the steel pipe is perpendicularly connected to the contact plate through the hole.

[0024] Preferably, it further includes a second support member. The number of the second support members is one or more, and both ends of the second support member are respectively connected to the contact plate and the steel pipe.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Through the design of the sliding self-locking device, the present invention can lock the contact plate on the scale, avoiding the problem that when reading the measurement rod, the silt mark is washed away by the water flow, and accurate, intuitive and effective reading cannot be achieved.

[0027] 2. The present invention has a simple structure, low cost, convenient operation, accurate measurement, wide application and is suitable for measuring the inspection wells of pipe networks.

[0028] 3. Through manual operation, the probe-type scale can penetrate the mud layer. The mud layer will block the downward movement of the contact plate. Operate the contact plate to fix the scale and obtain the sediment thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects and advantages of the present invention will become more apparent:

[0030] Figure 1 It is a schematic structural diagram of the scale and the sliding self-locking device of the present invention;

[0031] Figure 2 is Figure 1 a schematic enlarged view of part A in

[0032] Figure 3 is Figure 1 a schematic side view structure diagram of

[0033] Figure 4 is Figure 1 a schematic top view structure diagram of

[0034] Figure 5 It is a schematic working process diagram of the present invention.

[0035] The figures show:

[0036]

[0037] Detailed implementation manners

[0038] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made. These all belong to the protection scope of the present invention.

[0039] The present invention provides a mechanical sludge level gauge, including a scale 1 and a sliding self-locking device 2. The scale 1 and the sliding self-locking device 2 are made of stainless steel materials, suitable for the impact of large water flows in pipe networks, and not afraid of the impact of foreign objects in pipe inspection wells. At the same time, the problem of rust and corrosion is avoided. The sliding self-locking device 2 is installed on the scale 1 and can slide along the length direction of the scale 1.

[0040] As Figures 1 to 3 shown, the sliding self-locking device 2 includes a contact plate 4, a steel pipe 5, a first support member 6, a clamping plate 7, a fixed shaft 8, and a compression spring 10;

[0041] In a preferred example, the first support member 6 is a round steel.

[0042] The steel pipe 5 is sleeved on the scale 1, and there is a first notch 11 in the middle of the steel pipe 5; one end of the steel pipe 5 is connected to the contact plate 4;

[0043] The contact plate 4 is a steel plate with a certain area. A first contact surface is provided at the bottom of the contact plate 4. The first contact surface is a mating surface for the sludge in the well. The function of the first contact surface is to obtain a large resistance when contacting the sludge, so that the entire sliding self-locking device 2 stops on the sludge surface. In a preferred example, the contact plate 4 is a triangular steel plate with a central hole drilled; the steel pipe 5 is perpendicularly connected to the contact plate 4 through the hole.

[0044] The fixed shaft 8 is installed on the first support member 6. Preferably, the fixed shaft 8 is welded to the first support member 6. The two ends of the first support member 6 are respectively connected to the contact plate 4 and the steel pipe 5. Preferably, the welding connection method is adopted between the first support member 6, the contact plate 4, and the steel pipe 5, which can strengthen the overall structural strength. In a preferred example, the mechanical sludge level gauge further includes a bushing, and the fixed shaft 8 is sleeved in the bushing, and the bushing plays a protective role for the fixed shaft 8.

[0045] The pallet 7 includes a bending portion 16 which bends towards the ruler 1. One end of the pallet 7 is connected to one end of the compression spring 10, and the other end of the pallet 7 passes through the first notch 11. The pallet 7 can rotate along the fixed shaft 8; the other end of the compression spring 10 is installed on the steel pipe 5.

[0046] The pallet 7 further includes a first workpiece 12 and a second workpiece 13; one end of the first workpiece 12 is connected to the compression spring 10, and the other end of the first workpiece 12 is connected to one end of the second workpiece 13 through the bending portion 16. In a preferred example, the first workpiece 12, the bending portion 16 and the second workpiece 13 are integrally connected. The first workpiece 12 can rotate along the fixed shaft 8 to drive the second workpiece 13 to move; the other end of the second workpiece 13 passes through the first notch 11;

[0047] The ruler 1 can be a steel bar with a rectangular cross-section. One end of the ruler 1 has a spiked structure to facilitate the ruler 1 to be inserted into the silt. A plurality of tooth grooves 14 are provided on one side of the ruler 1 close to the first notch 11. The plurality of tooth grooves 14 are arranged along the length direction of the ruler 1. Preferably, the plurality of tooth grooves 14 are distributed within a range of 70 cm in the length direction of the ruler 1, and the intervals of the plurality of tooth grooves 14 are equal, being 1 cm. The other end of the pallet 7 matches the tooth grooves 14. Specifically, the second workpiece 13 matches the tooth grooves 14. The shape of the tooth grooves 14 is convenient for the pallet 7 to be inserted, realizing the functions of one-way passage and reverse self-locking and stopping. The compression spring 10 acts on one end of the pallet 7, driving the other end of the pallet 7 to be clamped in the tooth grooves 14 to a certain extent. Scale lines 15 are provided on the other side of the ruler 1 for the operator to read the values;

[0048] The mechanical sludge level gauge further includes an extension rod 3; the extension rod 3 is installed at the other end of the ruler 1, and the number of the extension rods 3 is one or more; the number of the extension rods 3 can be determined according to the well depth. Both ends of the extension rod 3 respectively have a first installation structure and a second installation structure, and the first installation structure and the second installation structure can match; the first installation structure is used to connect the extension rod 3 to the ruler 1, or match with the second installation structure for connection between multiple extension rods 3. In a preferred example, the extension rod 3 is a 2-meter-long steel pipe, and the first installation structure and the second installation structure are respectively an external thread structure and an internal thread structure, and a long nut is welded to the other end of the ruler 1 for connection with the first installation structure.

[0049] The mechanical sludge level gauge further includes an anti-miscontact structure 9, which is installed on the steel pipe 5 to prevent the clamping plate 7 and / or the spring 10 from being miscontacted. In a preferred example, the anti-miscontact structure 9 is a protective cover structure.

[0050] The mechanical sludge level gauge further includes a second support member 17. The number of the second support members 17 is one or more. The two ends of the second support member 17 are respectively connected to the contact plate 4 and the steel pipe 5, and are used to improve the overall structural strength. As Figure 4 shown, in a preferred example, the second support member 17 is a round steel and the number is 2.

[0051] The usage steps and working principle of the present invention are as follows:

[0052] During the use process, the mechanical sludge level gauge needs to be reset first. The reset needs to be manually operated. Press the compression spring 10, and the first workpiece 12 rotates around the fixed shaft 8, driving the second workpiece 13 to tilt up, so that the second workpiece 13 disengages from the tooth groove 14, and then the contact plate 4 in the sliding self-locking device 2 can be adjusted to be flush with the top of the spike structure of the scale 1 to achieve reset.

[0053] After the reset is completed, as Figure 5 shown, insert the mechanical sludge level gauge into the well. The contact plate 4 contacts the upper plane of the sludge layer. Due to the large area of the contact plate 4, it is resisted by the sludge layer, and the sliding self-locking device 2 stays on the sludge layer, but the scale 1 is still operated downward by the operator. When the scale 1 moves downward relative to the steel pipe 5, the tooth groove of the scale 1 will push down the clamping plate 7 to realize the one-way passage of the scale 1. At this time, the scale 1 continues to move downward and is inserted into the sludge until the bottom.

[0054] After the scale 1 is inserted into the sludge until the bottom, lift the measuring rod. At this time, the scale 1 moves upward relative to the steel pipe 5, and the other end of the clamping plate 7 will automatically snap into the nearest tooth groove below the clamping plate 7 of the scale 1 to realize reverse self-locking. Subsequently, the scale 1 will drive the sliding self-locking device 2 to move upward together.

[0055] After the measuring rod is lifted out of the wellhead, the length of the scale 1 exposed from the contact plate 4 is the sludge depth, and the value can be directly read from the scale on the scale 1.

[0056] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0057] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A mechanical sludge level gauge, characterized in that, It includes a scale (1) and a sliding self-locking device (2); the sliding self-locking device (2) is installed on the scale (1) and can slide along the length direction of the scale (1). The sliding self-locking device (2) includes a contact plate (4), a steel pipe (5), a first support member (6), a clamping plate (7), a fixed shaft (8), and a compression spring (10). The steel pipe (5) is sleeved on the scale (1), and there is a first notch (11) in the middle of the steel pipe (5). One end of the steel pipe (5) is connected to the contact plate (4). The fixed shaft (8) is installed on the first support member (6), and both ends of the first support member (6) are respectively connected to the contact plate (4) and the steel pipe (5). The clamping plate (7) includes a bent portion (16), the bent portion (16) is bent towards the scale (1), one end of the clamping plate (7) is connected to one end of the compression spring (10), the other end of the clamping plate (7) passes through the first notch (11), and the clamping plate (7) can rotate along the fixed shaft (8); the other end of the compression spring (10) is installed on the steel pipe (5). The clamping plate (7) further includes a first workpiece (12) and a second workpiece (13); one end of the first workpiece (12) is connected to the compression spring (10), and the other end of the first workpiece (12) is connected to one end of the second workpiece (13) through the bent portion (16). The first workpiece (12) can rotate along the fixed shaft (8); the other end of the second workpiece (13) passes through the first notch (11). On one side of the scale (1) close to the first notch (11), a plurality of tooth grooves (14) are provided, and the plurality of tooth grooves (14) are arranged along the length direction of the scale (1); on the other side of the scale (1), scale lines (15) are provided; the other end of the clamping plate (7) is matched with the tooth grooves (14). One end of the scale (1) has a spike structure; the bottom of the contact plate (4) is provided with a first contact surface, and the first contact surface is a matching surface for sludge in the well. It further includes a second support member (17), the number of the second support members (17) is one or more, and both ends of the second support member (17) are respectively connected to the contact plate (4) and the steel pipe (5). The mechanical sludge level gauge further includes an anti-mis-touch structure (9), and the anti-mis-touch structure (9) is installed on the steel pipe (5) to prevent the clamping plate (7) and / or the spring (10) from being mis-touched. The anti-mis-touch structure (9) is a protective cover structure.

2. The mechanical sludge level gauge according to claim 1, wherein, It further includes an extension rod (3); the extension rod (3) is installed on the scale (1), and the number of the extension rods (3) is one or more. Both ends of the extension rod (3) respectively have a first installation structure and a second installation structure, and the first installation structure and the second installation structure can be matched with each other. The first installation structure is used to connect the extension rod (3) to the scale (1), or matched with the second installation structure for connection between multiple extension rods (3).

3. The mechanical sludge level gauge according to claim 2, wherein The contact plate (4) is a triangular steel plate with a central drilled hole; the steel pipe (5) is perpendicularly connected to the contact plate (4) through the hole.

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