CN212363174U - Novel strain displacement meter - Google Patents

Abstract

The utility model discloses a novel strain displacement meter mainly relates to the atress detection technical field of rockfall protection network, novel strain displacement meter mainly includes extension spring and force sensor, and extension spring one end is connected with force sensor's detection response end, and the other end has the first atress detection connecting portion that is used for with external connection, and force sensor keeps away from the one end of extension spring and has the second atress detection connecting portion that is used for with external connection, and this strain displacement meter not only has the atress cushioning effect, can convert rigid impact into flexible impact, and can in time detect the atress value and carry out the feedback, is convenient for make accurate judgement. Novel protection network system includes novel displacement meter that meets an emergency is applied to this protection network system with displacement meter that meets an emergency, not only can cushion the protection to grabbing the ground rope, prevents to grab ground rope and appear cracked phenomenon because of great impact, can in time monitor moreover and grab the effort size between ground rope and the foundation pile.

Description

Novel strain displacement meter

Technical Field

The utility model belongs to the technical field of the atress detects the technique and specifically relates to a atress that falls stone protection network detects technical field, particularly, relates to a novel strain displacement takes into account novel protective screen system.

Background

The foundation pile in the existing rockfall protection net system is pulled and fixed by depending on a ground grabbing rope, large impulsive force can be generated in the moment when rockfall collides with a protection net, and particularly, huge impact force can be generated under the condition that large rockfall falls, so that the ground grabbing rope is easy to break or a force measurement sensing end of the ground grabbing rope breaks, the protection net cannot be accurately detected, and corresponding remedial measures cannot be taken in time to cause a series of serious accidents.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel displacement meter meets an emergency, this displacement meter meets an emergency not only has the atress cushioning effect, can convert rigid impact into flexible impact, can in time detect the stress value moreover and carry out the feedback, is convenient for make accurate judgement.

The embodiment of the utility model is realized like this: the utility model provides a novel displacement meter meets an emergency, includes extension spring and force sensor, and extension spring one end is connected with force sensor's detection response end, and the other end has and is used for detecting connecting portion with external connection's first atress, and force sensor keeps away from the one end of extension spring and has and be used for detecting connecting portion with external connection's second atress.

Further, still including being used for hiding the protecting sheathing of extension spring and being used for connecting the connecting piece of outside platform, the connecting piece is connected with first atress detection connecting portion or second atress detection connecting portion, and the protecting sheathing is connected with the connecting piece.

Furthermore, one end of the protective shell is rotatably connected with the connecting piece, and one side of the protective shell is provided with a notch communicated with the inner cavity of the protective shell.

Further, the connecting piece comprises a base plate, a movable plate and a connecting column, the base plate is detachably connected to the external platform, one side of the movable plate is hinged to one side of the base plate, and the connecting column is fixed between the tension sensor and the movable plate.

Furthermore, the protective shell is rotatably matched with the connecting column along the circumferential direction of the tension spring; the notch extends along the axial direction of the protective shell to form a strip shape.

Furthermore, the protective casing is a cylindrical casing, and one side of the notch penetrates through one side of the protective casing, which is far away from the movable plate.

Furthermore, the protective casing is used for covering the tension spring and the tension sensor, and the length of the protective casing is larger than the sum of the maximum limit length of the tension spring and the length of the tension sensor.

Furthermore, an adjusting mechanism is arranged between the movable plate and the protective shell and comprises a vertical rod and a connecting rod, the connecting column penetrates through the movable plate, threads are machined at one end, away from the tension sensor, of the connecting column, a locking nut is matched at one end, provided with the threads, of the connecting column, one end of the connecting rod is rotatably sleeved on the connecting column, the connecting rod is sleeved on the end portion, located between the locking nut and the movable plate, of the connecting column, the other end of the connecting rod is fixedly connected with the vertical rod, and the vertical rod is fixed on the end face.

Furthermore, one side of the substrate, which is far away from the external platform, is fixed with two connecting lugs, the two connecting lugs are respectively positioned at two sides of the substrate, and one side of the movable plate, which is close to the substrate, is rotatably connected between the two connecting lugs.

The embodiment of the utility model provides a beneficial effect is:

the novel strain displacement meter provided by the embodiment of the utility model has certain stress buffering effect by arranging the tension spring, can convert rigid impact into flexible impact, and reduces the impact of a measured object so as to prolong the service life of the measured object; and through setting up the assorted force sensor, can in time detect the size of extension spring atress value to can make in time feedback, in case exceed the extension spring ultimate atress value and just can take corresponding measure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a novel strain displacement meter provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the novel protection network system provided by the embodiment of the present invention.

Icon: 1-novel strain displacement gauge; 2-foundation piles; 3-ground-gripping ropes; 4-mounting a base; 5-a stay wire fixer; 6-protective screening; 101-a first force-sensing connection; 102-tension spring; 103-a connecting seat; 104-a tension sensor; 105-a second force-sensing connection; 106-connecting column; 107-threaded end; 108-an active plate; 109-a gap; 110-a connecting rod; 111-upright stanchion; 112-a protective housing; 113-a locking nut; 114-substrate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

The terms "substantially", "essentially", and the like are intended to indicate that the relative terms are not required to be absolutely exact, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but it is difficult to achieve absolute equality in actual production and operation, and some deviation generally exists. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1, the present embodiment provides a novel strain displacement gauge 1, which includes a tension spring 102 and a tension sensor 104, wherein one end of the tension spring 102 is connected to a sensing end of the tension sensor 104, a connecting seat 103 is disposed between the tension spring 102 and the tension sensor 104 for more stable connection between the tension spring 102 and the tension sensor 104, the other end of the tension spring 102 has a first stress detection connecting portion 101 for external connection, and one end of the tension sensor 104, which is far away from the tension spring 102, has a second stress detection connecting portion 105 for external connection. The first stress detection connecting part 101 of the tension spring 102 is connected with an external object to be tested, and can provide a certain buffering effect for the stress of the object to be tested, and the magnitude of the stress value of the tension spring 102 can be detected in time by arranging the tension sensor 104 matched with the tension sensor, so that the state of the object to be tested after being subjected to external force is judged, the stress value is fed back in time, timely judgment is made according to the state, and once the stress value exceeds the limit stress value of the tension spring 102, corresponding measures can be taken in time.

The first stress detection connecting portion 101 may be an inherently formed portion of the body of the tension spring 102, such as a drag hook or a pull ring formed at the tail end or the head end of the tension spring 102, or may be the other structural portions connected to the tension spring 102, such as a connecting member, a connecting seat, or a connecting body. In this embodiment, the first force detection connecting portion 101 is a connecting member, and one side of the first force detection connecting portion is fixedly connected to the tension spring 102, the fixed connection may be welding, screwing, hooking, or the like. Similarly, the second force-receiving detection connection portion 105 may also be a portion that is formed inherently in the body (housing) of the tension sensor 104 or the rest of the structure connected to the housing of the tension sensor 104, and in this embodiment, the rest of the structure connected to the tension sensor 104 is preferred, and it only needs to satisfy the requirement of stable connection between the tension sensor 104 and the external structure.

It should be noted that, the novel strain displacement meter 1 provided in this embodiment is mainly applied to, but not limited to, the field or outdoor stress detection technology field, but in order to make the novel strain displacement meter 1 adapt to the field environment better, the tension spring 102 is protected to some extent here to prevent it from being disturbed by external force or being corroded by rainwater and severely rusted. Specifically, this novel strain displacement meter 1 still includes the connecting piece that is used for hiding the protecting sheathing 112 of extension spring 102 and is used for connecting outside platform, because protecting sheathing 112 mainly plays the effect of hiding extension spring 102, avoids influencing the detection precision because protecting sheathing 112 direct contact arrives extension spring 102, and protecting sheathing 112 is connected with the connecting piece, but this connecting piece direct mount be outside on the platform of outdoor detection department on the platform, can realize the location installation of whole novel strain displacement meter. The connecting member is connected to the first stress detection connecting portion 101 or the second stress detection connecting portion 105, that is, the first stress detection connecting portion 101 or the second stress detection connecting portion 105 can be connected to the object to be detected, and both the first stress detection connecting portion 101 and the second stress detection connecting portion 105 can achieve the purpose of stress detection.

The protective casing 112 may be a single plate, or may be a casing having an inner cavity or being semi-closed, or may be a closed casing having a regular shape or being irregular, and the main purpose of the protective casing is to shield the tension spring 102, in this embodiment, the protective casing 112 is preferably a cylindrical casing having a circular cross section, and the tension spring 102 is placed in the inner cavity of the cylindrical casing, so that the tension spring 102 can be shielded and protected, and the possibility of external force and rain water wetting can be reduced. In order to conveniently overhaul and maintain the tension spring 102, one end of the protective shell 112 is rotatably connected to the connecting piece, one side of the protective shell 112 is provided with a notch 109 communicated with an inner cavity of the protective shell, when the tension spring 102 needs to be overhauled and maintained, the protective shell 112 is rotated, the notch 109 faces the direction which is favorable for overhauling, and the tension spring 102 can be operated through the notch 109 so as to achieve the aim of overhauling or replacing.

Considering that the force detection angle of the tension spring 102 needs to be adjusted at any time, that is, the function of adjusting the angle between the tension spring 102 and the external platform needs to be provided, the connecting piece must be required to have not only the connecting function but also the function of adjusting the angle. Specifically, the connecting member includes a base plate 114, a movable plate 108 and a connecting column 106, the base plate 114 is detachably connected to the external platform, the detachable connection mode may be a screw connection, a riveting connection, a buckling connection or a clamping connection, and mainly plays a role in detaching connection so as to facilitate detachment and installation. The movable plate 108 is hinged to the base plate 114 by a ball hinge or a planar hinge, depending on the desired direction of adjustment of the tension spring 102. In the embodiment, a general planar hinge is adopted between the movable plate 108 and the base plate 114, specifically, two engaging lugs are fixed on one side of the base plate 114 away from the external platform, the two engaging lugs are respectively located on two sides of the base plate 114, and two ends of the movable plate 108 close to one side of the base plate 114 are rotatably connected between the two engaging lugs through rotating pins, so that the structure can ensure that the movable plate 108 rotates in two opposite directions on the same side relative to the base plate 114. In this embodiment, the connection column 106 is fixed between the second stress detection connection portion 105 of the tension sensor 104 and the movable plate 108, so that the connection column 106 can obtain high connection stability, and the problem of easy shaking or unstable connection due to the connection directly with the first stress detection connection portion 101 of the tension spring 102 is avoided.

In order to reduce the floor area of the protective casing 112 and facilitate the tension spring 102 to be replaced conveniently, along the circumferential direction of the tension spring 102, the protective casing 112 is rotatably matched with the connecting column 106, so that the protective casing 112 can rotate around the tension spring 102, when the tension spring 102 needs to be overhauled or replaced, the protective casing 112 is rotated by a certain angle, the tension spring 102 can be operated, after the overhaul and replacement are completed, the protective casing 112 is continued by a certain angle, and the covering effect is continuously achieved. In order to ensure that the rotation amplitude of the protective casing 112 is not too large, the axis of the connecting column 106 and the axis of the protective casing 112 are preferably coincident with the axis of the tension spring 102, so that the protective casing 112 can revolve around the tension spring 102 while rotating, thereby occupying a smaller rotation space. The shape and the position of breach 109 only need satisfy do benefit to overhaul or change extension spring 102 can, in order to make breach 109 more convenient machine-shaping, in this embodiment, breach 109 is the strip along the axial extension of protecting sheathing 112, and the length of breach 109 is roughly equal with protecting sheathing 112's length, and breach 109 one side link up protecting sheathing 112 and keep away from one side of fly leaf 108, the width of this strip breach 109 is roughly equal with the diameter of protecting sheathing 112 inner chamber, not only can provide comparatively broad operating space for extension spring 102 like this, thereby realize the quick and convenient purpose of changing of extension spring 102, and the protecting sheathing 112 part of breach 109 both sides can play the effect that the guide rainwater drips.

In consideration of the fact that the tension sensor 104 has a casing for protection, in order to make the protection effect more sufficient, the protective casing 112 is used to cover the tension spring 102 and the tension sensor 104, i.e. the tension spring 102 and the tension sensor 104 are both located in the inner cavity of the protective casing 112, and the axis of the tension spring 102 passes through the tension sensor 104, i.e. the body center of the tension sensor 104 is as close as possible to the axis of the tension spring 102 or even coincides with the axis. The length of the protective casing 112 is greater than the sum of the maximum limit length of the tension spring 102 and the length of the tension sensor 104, which means that the protective casing 112 can still cover the tension spring 102 when the tension spring 102 is in a stretched state.

In order to achieve the purpose of easily adjusting the protective casing 112, an adjusting mechanism is disposed between the movable plate 108 and the protective casing 112, the adjusting mechanism includes a vertical rod 111 and a connecting rod 110, the connecting column 106 passes through the movable plate 108, and one end of the connecting column 106, which is far away from the tension sensor 104, is processed with a thread, one end of the connecting column 106, which is the threaded end 107, is matched with a locking nut 113, one end of the connecting rod 110 is processed with a through hole, one end of the connecting rod 110 is rotatably sleeved on the threaded end 107 of the connecting column 106 through a through hole thereof, a part of the connecting rod 110 sleeved on the threaded end 107 is positioned between the lock nut 113 and the movable plate 108, the other end of the connecting rod 110 is fixedly connected with the upright 111, the upright 111 is fixed on the end surface of the protective shell 112 close to one side of the movable plate 108, in the embodiment, the connecting rod 110 is parallel to the movable plate 108, the vertical rod 111 is parallel to the axis of the protective casing 112, and the vertical rod 111 and the connecting rod 110 are perpendicular to each other. When the protective shell 112 needs to be adjusted to rotate, the locking nut 113 is unscrewed, the connecting rod 110 is pulled to enable the protective shell 112 to rotate easily, and when the protective shell 112 is in place, the locking nut 113 is screwed to lock the protective shell 112.

This novel strain displacement meter is not only applicable to the structural of outdoor atress detection, and the atress that protects indoor needs detects the structure equally suitable, and this embodiment mainly expandes the explanation with outdoor service behavior, especially involves the rockfall protection monitoring technology field. The embodiment provides still a novel protection net system promptly, please refer to fig. 2, this protection net system includes many foundation piles 2, and the many rope 3 of grabbing ground that equals with many foundation piles 2 quantity, every foundation pile 2's bottom all articulates there is mount pad 4, mount pad 4 is used for connecting the ground, every rope 3 of grabbing ground is used for pulling drags and draws every foundation pile 2, make every foundation pile 2 guarantee vertical or tend to vertical state, grab ground rope 3 one end and be connected with wire drawing fixer 5, be used for being fixed in the ground with rope 3 one end of grabbing, be provided with protection net 6 between the adjacent foundation pile 2.

The inventor of the present application has found that: when the larger falling rocks of size hit the protection network 6, the instant larger impact force can be generated, the ground grabbing rope 3 is easy to break under the instant dragging effect at the moment, especially the force measuring sensing end of the ground grabbing rope 3 breaks and cannot be monitored in time, and once the protection network 6 or the foundation pile 2 is in the condition of long-time dumping due to untimely maintenance, the safety below the hillside can be seriously threatened, so that a series of safety accidents are caused.

In order to overcome the problems, the novel protective net system further comprises a plurality of novel strain displacement meters 1, each novel strain displacement meter 1 is arranged between each ground grabbing rope 3 and each foundation pile 2, the novel strain displacement meters 1 can achieve the purpose of buffering, so that the ground grabbing ropes 3 are guaranteed, the situation that the ground grabbing ropes are broken easily cannot occur, and the connection stability and the long service life can be guaranteed. Specifically, foundation pile 2 can be connected with one of first atress detection connecting portion 101 and second atress detection connecting portion 105 of novel displacement meter 1 in both, and novel protective net system's ground rope 3 can be connected with another one of first atress detection connecting portion 101 and second atress detection connecting portion 105 of novel displacement meter 1 in both, only need with novel displacement meter 1 use in foundation pile 2 and grab ground rope 3 between play the cushioning effect can. In the embodiment, preferably, the foundation pile 2 is connected with the second connecting part 105 of the novel strain displacement meter 1 through a connecting piece, and one end of the ground gripping rope 3, which is far away from the stay wire fixer 5, is connected with the first stress detection connecting part 101. In another specific embodiment, the foundation pile 2 is detachably connected to the base plate 114 as an external platform through bolts, and one end of the ground gripping rope 3 away from the stay wire fixing device 5 is connected to the first force detection connecting portion 101 through a knot.

It should be noted that, in the process of actually applying the novel strain displacement meter 1 to the novel protection network system, the whole protection network system can be monitored in real time, so as to determine what state the protection network system is in, for example, according to data fed back by the tension sensor 104 and the change rate thereof, the magnitude of the impact force can be determined, so as to determine whether the body type of the rockfall is within the safety protection range of the protection network 6; the specific falling quantity of the rockfall in the single rockfall process can be judged according to the data change rate, so that the phenomenon that the rockfall falls intensively or landslide is caused at the position of the mountain slope is judged, and corresponding preventive measures are taken; in addition, whether the elastic limit of the gripping rope 3 is exceeded or not can be judged according to the maximum peak value of the data, so that whether the gripping rope 3 needs to be maintained and replaced in time or not can be judged. Of course, the above shows the main practical application processes, but not limited to the practical application processes.

In conclusion, the novel protective net system provided by the embodiment can enable the ground grabbing ropes 3 to be changed into flexible impacts by larger rigid impacts, which is equivalent to the situation that each ground grabbing rope 3 has a larger contraction limit and cannot be easily broken by an external force exceeding the elastic limit, so that the longer service life and the more reliable connection stability of the novel protective net system are ensured, and the long-term and reliable work of the whole protective net system is guaranteed; meanwhile, stable monitoring operation can be timely carried out by matching with the tension sensor 104, and once the situation that the tension sensor approaches to the warning value or the critical value occurs, corresponding remedial measures can be timely taken to avoid causing subsequent loss which is difficult to compensate.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a novel strain displacement meter, its characterized in that, includes extension spring and force sensor, extension spring one end with force sensor's detection response end is connected, and the other end has and is used for detecting connecting portion with external connection's first atress, force sensor keeps away from the one end of extension spring has and is used for detecting connecting portion with external connection's second atress.

2. The novel strain displacement gauge according to claim 1, further comprising a protective housing for covering the extension spring and a connecting member for connecting an external platform, wherein the connecting member is connected to the first force-receiving detection connecting portion or the second force-receiving detection connecting portion, and the protective housing is connected to the connecting member.

3. The novel strain displacement gauge according to claim 2, wherein the protective housing is rotatably connected at one end to the connecting member, and a notch is provided on one side of the protective housing to communicate with the inner cavity of the protective housing.

4. The novel strain displacement gauge according to claim 3, wherein the connecting member comprises a base plate, a movable plate and a connecting column, the base plate is detachably connected to the external platform, one side of the movable plate is hinged to one side of the base plate, and the connecting column is fixed between the tension sensor and the movable plate.

5. The novel strain displacement gauge according to claim 4, wherein the protective housing is rotatably engaged with the connecting column along a circumferential direction of the tension spring; the notch extends along the axial direction of the protective shell to form a strip shape.

6. The novel strain displacement gauge according to claim 5, wherein the protective casing is a cylindrical casing, and one side of the notch penetrates through one side of the protective casing away from the movable plate.

7. The novel strain displacement gauge according to claim 3 or 4, wherein the protective casing is used for covering the tension spring and the tension sensor, and the length of the protective casing is larger than the sum of the maximum limit length of the tension spring and the length of the tension sensor.

8. The novel strain displacement meter according to claim 4, wherein an adjusting mechanism is arranged between the movable plate and the protective shell, the adjusting mechanism comprises a vertical rod and a connecting rod, the connecting rod penetrates through the movable plate, a thread is machined at one end of the connecting rod, which is far away from the tension sensor, a locking nut is matched at one end of the thread, one end of the connecting rod is rotatably sleeved on the connecting rod, the end portion of the connecting rod, which is sleeved on the connecting rod, is located between the locking nut and the movable plate, the other end of the connecting rod is fixedly connected with the vertical rod, and the vertical rod is fixed on the end surface of the protective shell, which is close to one side of the movable plate.

9. The novel strain displacement gauge according to claim 4, wherein two connecting lugs are fixed on one side of the base plate away from the external platform, the two connecting lugs are respectively located on two sides of the base plate, and one side of the movable plate close to the base plate is rotatably connected between the two connecting lugs.

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