CN209764161U - Mining environmental parameter detection ball - Google Patents
Mining environmental parameter detection ball Download PDFInfo
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- CN209764161U CN209764161U CN201920798509.3U CN201920798509U CN209764161U CN 209764161 U CN209764161 U CN 209764161U CN 201920798509 U CN201920798509 U CN 201920798509U CN 209764161 U CN209764161 U CN 209764161U
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Abstract
The utility model discloses a mining environmental parameter detects ball, including the spherical safety cover that is used for protecting detecting element, the safety cover includes interior protection unit, cladding and is in outer protection unit on the interior protection unit, outer protection unit with interior protection unit is hollow structure's spheroid, be provided with a plurality of evenly distributed support element on the inner wall of outer protection unit, the support element supports tightly on the outer wall of interior protection unit, outer protection unit with it has the buffer layer to fill between the interior protection unit. The utility model provides high to the anti falling nature and the shock resistance of probe, protect its inside electronic component.
Description
Technical Field
The utility model relates to a test probe technical field specifically is a mining environmental parameter detects ball.
background
The mining environment parameter detecting probe (hereinafter referred to as probe) is an important component of the advanced environment parameter detecting device, mainly comprising a shell and a detecting element therein, can simultaneously and continuously detect the concentration and the environment temperature value of 4 gases including CH 4, O 2, CO and CO 2, wirelessly transmits a gas concentration signal to a host computer and displays the gas concentration signal, when the concentration of the gas to be detected in the environment reaches or exceeds or is lower than a preset alarm value, the host computer sends out a vibration alarm, and the gas alarm value on the host computer turns red.
The use environment of the probe is relatively severe compared with other detection devices, and the probe is inevitably impacted when in use, so that a protection structure needs to be arranged on the probe to protect the electronic elements in the probe, so as to improve the shock resistance and the falling resistance of the probe and prevent the electronic elements on the inner wall of the probe from being damaged.
SUMMERY OF THE UTILITY MODEL
the technique that exists is not enough to the aforesaid, the utility model aims at providing a mining environmental parameter detects ball improves the anti falling nature and the shock resistance to the probe, protects its inside electronic component.
In order to solve the technical problem, the utility model adopts the following technical scheme:
The utility model provides a mining environmental parameter detects ball, including the spherical safety cover that is used for protecting detecting element, the safety cover includes interior protection unit, cladding and is in outer protection unit on the interior protection unit, outer protection unit with interior protection unit is hollow structure's spheroid, be provided with a plurality of evenly distributed support element on the inner wall of outer protection unit, the support element supports tightly on the outer wall of interior protection unit, outer protection unit with it has the buffer layer to fill between the interior protection unit.
preferably, the supporting unit comprises a cone and a cylindrical pushing sleeve nested on the cone, the pushing sleeve is fixedly arranged on the outer protection unit, the cone abuts against the inner protection unit, a blind hole for the tip of the cone to penetrate through is formed in the pushing sleeve, and when the pushing sleeve abuts against the cone, a gap is formed between the tip of the cone and the bottom of the blind hole.
preferably, the tip of the cone is designed to be a circular surface, the overall outline is defined by two circular bottom surfaces with different areas and an arc-shaped side surface, the smaller circular bottom surface of the tip of the cone is located in the blind hole, the end part, far away from the outer protection unit, of the push sleeve abuts against the side surface of the cone, the diameter of the circular bottom surface of the tip of the cone is smaller than the wall thickness of the push sleeve, and the wall thickness of the push sleeve is smaller than the thickness of the outer protection unit.
Preferably, the outer protection unit is formed by combining two hemispherical outer shells, the inner protection unit is formed by combining two hemispherical inner shells, the two outer shells are fixedly arranged, and the two inner shells are fixedly arranged.
Preferably, the two inner shells are fixed by bolts, and the two outer shells are fixed by gluing; the two inner shells are respectively and fixedly provided with a first connecting column and a second connecting column which are the same in quantity, the bolt is tightly abutted to the first connecting column and is assembled in the second connecting column in a threaded manner, and the outer shell is provided with a bolt hole for the bolt to penetrate through.
Preferably, three probe sleeves which are uniformly distributed are arranged on the top of one of the outer shells, the probe sleeves penetrate through the outer shells, a lifting ring hole is formed in the top of the other outer shell, a probe hole for the probe sleeve to penetrate through is formed in one of the inner shells, a lifting ring sleeve is arranged on the other inner shell, the lifting ring sleeve penetrates through the inner shells and is communicated with the lifting ring hole, and a lifting ring is assembled in the lifting ring sleeve in a threaded mode.
Preferably, the inner shell with all seted up communicating power hole on the shell, be provided with the rubber buffer in the power hole, the inner shell with still all seted up communicating temperature sensor window on the shell.
Preferably, the outer shell, the inner shell, the support unit material is the same and is PC plastics, the material of buffer layer is the TPU flexible glue.
The beneficial effects of the utility model reside in that:
(1) The internal and external protection units of the utility model are spherical, the structural strength of the probe is improved by utilizing the structural characteristics of the sphere, and the electronic elements in the probe are protected doubly by utilizing the two layers of protection of the internal and external protection units;
(2) The utility model arranges the supporting unit between the inner and outer protection units to form a buffer space between the inner and outer protection units, and fills the buffer layer in the buffer space, so that the outer protection unit can generate buffer when being impacted, thereby reducing the impact force of the inner protection unit;
(3) The supporting units are arranged, so that a plurality of supports are formed between the inner protection unit and the outer protection unit, and when the outer protection unit is impacted, on one hand, the supporting units can share a part of impact force, and the impact on the inner protection unit is reduced; on the other hand, the supporting unit enables the outer protection unit to form areas with different impact strengths, and then after the detection ball is used for a long time, whether the outer protection unit needs to be replaced or not can be judged according to the sinking degree of the outer protection unit, and further the high cost caused by overall replacement is reduced.
Drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view (front view) of a mining environmental parameter detection ball provided by an embodiment of the present invention;
fig. 2 is a schematic perspective view (rear view) of a mining environmental parameter detection ball provided by an embodiment of the present invention;
FIG. 3 is an exploded view of FIG. 1;
fig. 4 is a front view of a mining environmental parameter detection ball provided by an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is an enlarged view of portion B of FIG. 5;
FIG. 7 is an enlarged view of portion C of FIG. 5;
fig. 8 is a schematic structural view of the supporting unit in fig. 6.
Description of reference numerals:
The device comprises an outer protection unit 1, an outer shell 10, a probe sleeve 11, a hanging ring 12, a hanging ring hole 13, a bolt hole 2, an inner protection unit 20, an inner shell 21, a probe hole 22, a hanging ring sleeve 221, a first metal insert 23, a first connecting column 24, a second connecting column 241, a second metal insert 241, a bolt 25, a buffer layer 3, a supporting unit 4, a cone 41, a push sleeve 42, a blind hole 421, a temperature sensor window 5 and a rubber plug 6.
Detailed Description
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
example (b):
As shown in fig. 1, the utility model provides a mining environmental parameter detection ball, including the spherical safety cover that is used for protecting detecting element, the safety cover includes interior protection unit 2, the cladding is at outer protection unit 1 on interior protection unit 2, wherein detecting element is prior art, including placing lithium cell, temperature sensor, microcontroller etc. in interior protection unit 2, it is in through wireless transmission host computer with the data that detect, these detecting element are fixed in interior protection unit 2, this application does not carry out detailed description to detecting element, specific detecting element can refer to the detection ball in leading environmental parameter detection device ZCJ4 that north Beijing dongting century accuse shares Limited company produced;
As shown in fig. 3, the outer protection unit 1 and the inner protection unit 2 are both hollow spheres, the inner wall of the outer protection unit 1 is provided with a plurality of uniformly distributed support units 4, the support units 4 are tightly abutted against the outer wall of the inner protection unit 2, a buffer layer 3 is filled between the outer protection unit 1 and the inner protection unit 2, and the buffer layer 3 is made of TPU soft rubber; for convenient installation, the outer protection unit 1 is formed by folding two hemispherical outer shells 10, the inner protection unit 2 is formed by folding two hemispherical inner shells 20, the two outer shells 10 are fixed by high-strength glue (such as AB glue), the two inner shells 20 are fixed by bolts 25, and the thickness of the outer shell 10 is the same as that of the inner shells 20; with reference to fig. 5 and 6, the inner shell 20 is fixedly provided with first connecting columns 23 and second connecting columns 24 (3 in this embodiment) which are the same in number, the bolts 25 are tightly abutted to the first connecting columns 23 and are assembled in the second connecting columns 24 in a threaded manner, the outer shell 10 is provided with bolt holes 13 for the bolts 25 to penetrate, further, in order to improve the connection strength, cylindrical second metal inserts 241 are embedded in the second connecting columns 24, and the second metal inserts 241 are provided with internal threads and are in threaded connection with the bolts 25;
as shown in fig. 6 and 8, the supporting unit 4 includes a cone 41 and a cylindrical push sleeve 42 nested on the cone 41, and the cone 41 has a tip, which is a circular surface (i.e. the end surface of the cone 41 away from the inner shell 20), the overall outline of the cone 41 is defined by two circular bottom surfaces with different areas and an arc-shaped side surface (the circular bottom surface with a smaller area is the circular surface of the tip of the cone 41), the push sleeve 42 is fixedly disposed on the inner wall of the outer shell 10, the cone 41 abuts against the outer wall of the inner shell 20, the push sleeve 42 is provided with a blind hole 421 for the tip of the cone 41 to penetrate through, i.e. the smaller circular bottom surface of the tip of the cone 41 is located in the blind hole 421, and the end of the push sleeve 42 away from the outer shell 10 abuts against the side surface of the cone 41; when the push sleeve 42 abuts against the cone 41, a gap (a in fig. 8) is formed between the tip of the cone 41 and the bottom of the blind hole 421, the wall thickness of the push sleeve 42 (in this embodiment, the wall thickness of the push sleeve 42 refers to the wall thickness at the blind hole 421, i.e. b in fig. 8) is smaller than the thickness of the housing 10, the thicknesses of the two parts can be selected at the time of actual design, for example, the thicknesses of the two parts are in a 5-time relation, the wall thickness of the push sleeve 42 influences the deformation force capability of the supporting unit 4, when the wall thickness of the push sleeve 42 is larger, the less the deformation (corresponding to a higher rigidity) is generated at the blind hole 421, the more the deformation (corresponding to a lower rigidity) is generated at the blind hole 421 when the wall thickness is smaller, therefore, the wall thickness of the push sleeve 42 is smaller than that of the shell 10, so that the support function can be achieved, and the support unit 4 has excellent deformability, so that the support unit is prevented from being difficult to deform to form large impact; the diameter of the smaller circular bottom surface of the tip of the cone 41 (i.e., d in fig. 8) is smaller than the wall thickness of the push sleeve 42; in the present embodiment, the cone 41, the push sleeve 42, the outer shell 10 and the inner shell 20 are made of the same material and are made of PC plastic;
As shown in fig. 7 and 8, the support unit 4 is disposed such that a plurality of supports are formed between the inner and outer protection units such that the outer protection unit 1 forms regions different in impact strength, i.e., regions of action of F1 and F2 in fig. 7 (F1 and F2 represent external impact force), in which F2 acts on a position where the support unit 4 contacts the case 10 and other regions on which F1 acts; in fig. 8, f represents the acting force of the pushing sleeve 42 on the cone 41 (i.e. the force applied to the cone 41), and f1, f2, f11 and f21 represent the component force of f; when the supporting unit 4 is subjected to the force F2, the pushing sleeve 42 acts on the arc-shaped side surface of the cone 41, since the side surface of the cone 41 is arc-shaped, and F points to the center of the circle, a horizontal component F1 and a vertical component F2 are generated at the contact position of the pushing sleeve 42 and the cone 41, wherein F2 points to the inner protection unit 2 and acts on the inner shell 20, F1 points to the cone 41 (the force does not act on the inner shell 20), and finally a part of the impact force is distributed to the cone 41, and F2 is smaller than F at the moment, so that the impact force of the inner shell 20 can be reduced, and since the pushing sleeve 42 is cylindrical, F1 is actually generated and distributed in a plurality of circumferential directions and all points to the axis of the pushing sleeve 42, so that an internal stress is generated to interact in the supporting unit 4, and the internal stress is finally converted into a force for expanding the pushing sleeve 42 (i.e. the pushing sleeve 42 expands near the end of, along with the increasing of the impact force, the force for promoting the expansion of the push sleeve 42 is gradually increased, when the impact force is increased to a certain degree, the port of the push sleeve 42 is expanded and deformed, the push sleeve 42 moves relatively relative to the cone 41, the gap a is just arranged to provide a displacement space for the relative movement, so that the impact force is buffered, when the gap a is zero, the end part, far away from the inner shell 20, of the cone 41 abuts against the push sleeve 42, the end part is deformed due to the fact that the end part, in contact with the push sleeve, of the cone is thin (smaller than 1/5 of the wall thickness of the outer shell), and then the end part deforms, so that the buffer is formed again, and along with the continuous movement of the push sleeve, the end part is more difficult to deform, so that a final barrier is formed, and the outer shell 10 is prevented from continuously deforming, namely, at this; in fact, during the process that the push sleeve 42 moves relative to the cone 41, the outer shell 10 and the buffer layer 3 also deform along with the deformation of the outer shell 10, and the deformation of the outer shell 10 is accompanied by the stress on the supporting units 4 around the F1, so that the deformation of the outer shell 10 itself, the buffer layer 3, and the supporting units 4 around the F2 also absorb a part of the impact force, and finally the received impact force of the inner shell 20 is absorbed by the outer shell 10, the buffer layer 3, and the supporting units 4, so as to reduce the impact force of the inner shell 20, and the inner shell 20 itself also has the supporting capability, so as to protect the detecting elements therein;
When the supporting unit 4 is subjected to the force F1, due to the existence of the supporting unit 4, the supporting unit 4 acts as a reinforcing column, so that a plurality of reinforcing points are formed around the F1, when the F1 acts, the outer shell 10 is recessed at the position to play a role in buffering, and meanwhile, the buffer layer 3 at the position and the surrounding supporting unit 4 also play a role in buffering, so that the impact force of the inner shell 20 is reduced; therefore, with the long-term use of the detection ball, the shell 10 can be replaced according to the surface depression condition of the shell 10, so that the high cost caused by the whole replacement is reduced, and the detection ball can be judged according to the number of depression areas and the depression depth; according to the buffering limit of the supporting unit, for example, when the depth of the recess reaches twice a, the supporting unit can be replaced;
in addition, as shown in fig. 8, since the side surface of the cone 41 is arc-shaped, in fig. 8, the slope of the side surface changes, where f11 and f21 are the forces acting on the other push sleeve 42 and the cone 41, as compared with f1 and f2, f2 is smaller than f21, so that the larger the distance (i.e. c) of the push sleeve 42 from the bottom surface of the cone 41 close to the inner shell 20, the smaller the component force directed to the inner shell 20 is generated, and therefore the more beneficial the reduction of the impact force of the inner shell 20 is, but the larger the c and a increase the size of the outer shell, so the values of a and c can be set by itself during actual manufacturing, for example, the ratio of a, b, and c may be 2: 1: 5.
As shown in fig. 1 to 3, in order to realize gas detection, the top of one of the shells 10 of the detection ball is provided with three uniformly distributed probe sleeves 11, the probe sleeves 11 penetrate through the shells 10, the top of the other shell 10 is provided with a suspension ring hole 12, one of the inner shells 20 is provided with a probe hole 21 for the probe sleeve 11 to pass through, the inner diameter of the probe hole 21 is the same as the outer diameter of the probe sleeve 11, the other inner shell 20 is provided with a hanging ring sleeve 22, the hanging ring sleeve 22 penetrates through the inner shell 20 and is communicated with the hanging ring hole 12, a hanging ring is assembled in an internal thread of the hanging ring sleeve 22, the hanging ring is structurally a circular ring and a threaded column fixed on the circular ring, a cylindrical first metal insert 221 is embedded in the hanging ring sleeve 22 for increasing the connecting strength of the hanging ring and the hanging ring sleeve 22, the first metal insert 221 is provided with an internal thread and is in threaded connection with the threaded column, and the second metal insert 241 is the same as the first metal insert 221 in material (can be; referring to fig. 4, the inner shell 20 and the outer shell 10 are both provided with a power supply hole, a rubber plug 6 is arranged in the power supply hole, and the inner shell 20 and the outer shell 10 are both provided with a temperature sensor window 5; wherein probe cover 11 provides the passageway for gas to realize the detection of detecting element to gas, temperature sensor window 5 makes the temperature sensor in the detecting element contact with the external world, measures the external diameter temperature, and the power supply hole is used for letting in the electric wire, in order to charge for the battery in the detecting element.
In addition, in order to ensure the strength of the inner shell and the outer shell, the outer shell 10, the probe sleeve 11 and the push sleeve 42 are made of the same material and are integrally formed, the inner shell 20, the flying ring sleeve 22, the first connecting column 23 and the second connecting column 24 are made of the same material and are integrally formed, and the forming process can adopt injection molding.
Under the influence of the distribution of the supporting units and the wall thickness b and a of the push sleeve, the shell can generate the following conditions when stressed:
firstly, when the impact force of F2 is carried out, the cone and the push sleeve generate relative motion, and a recess is generated at the F2 position; at the moment, four conditions can be generated by the push sleeve, and under the four conditions, the F2 can be buffered, so that the deformation of the inner shell is reduced;
When the sleeve is in the first condition, the gap a exists, and the port of the push sleeve is expanded and does not crack; when the impact is again generated at F2, two results occur, with the result that, once the impact force is insufficient, the depression remains; as a result, the push sleeve can continue to move relative to the conical head to generate buffering;
In the second case, the gap a exists, the thrust sleeve port is cracked, when the impact is again generated at F2, two consequences result, one impact force is insufficient and the depression remains; as a result, the push sleeve can continue to move relative to the conical head to generate buffering;
When the sleeve is in the third condition, the gap a does not exist, and the port of the push sleeve is not cracked after being expanded; when an impact is again generated at F2, two results occur, with the result that, as soon as the impact force is insufficient, the end of the cone (the end remote from the inner shell) is not deformed; as a result, the end of the cone is deformed;
when the sleeve is in the fourth condition, the gap a does not exist, and the port of the push sleeve is not cracked after being expanded; when the impact is again generated at F2, two results occur, with the result that, once the impact force is insufficient, the depression remains; as a result, the end of the cone is deformed;
② when the impact force of F1 is carried out, the dent will be generated at the position, and two situations will occur: firstly, the shell at the position generates a recess, and the supporting unit at the periphery of the recess is not deformed; secondly, the shell generates a recess and generates a recess along with the surrounding shell;
When only the case here is dented, when the impact is again generated at F1, two results will be produced, with the result that once the impact force is insufficient, the dent remains; as a result, the housing continues to be depressed and the support unit remains undeformed;
when the outer shell is sunken and is sunken along with the surrounding outer shell, the supporting unit generates four conditions in the step (r), so that the deformation of the inner shell is reduced;
and impact forces of F1 and F2 are insufficient, the shell is not deformed, and the fact that the shell is not deformed means that the cone and the push sleeve do not move relatively.
in summary, when the outer shell and the supporting unit are impacted by external force, the impact force of the inner shell can be reduced, the outer shell can deform when the outer shell and the supporting unit resist the impact force, and the outer shell needs to be replaced when the depth of the recess of the outer shell exceeds two times a.
When in use, the detection element is fixed in the two inner shells 20, the two inner shells 20 are fixed by the matching of the bolt 25 and the connecting column, then the two outer shells 10 are coated on the inner shells 20, when in installation, the probe sleeve 11 on the outer shell 10 passes through the probe hole 21 of the inner shell 20, and the suspension ring hole 12 on the outer shell 10 is communicated with the suspension ring sleeve 22 on the inner shell 20, because the cone 41 in the supporting unit 4 is partially inserted into the push sleeve 42, the cone 41 is unstable in the push sleeve 42, when in installation, for convenience of installation, the cone 41 is fixed in the push sleeve 42 by glue, then the outer shell 10 is coated on the inner shell 20 and the two outer shells 10 are fixed by AB glue (note that the bonding strength of the glue used when the cone 41 and the push sleeve 42 are fixed is lower than that of AB glue, for example, hot melt glue can be used), after the outer shell 10 is fixed, the suspension ring is installed in the suspension, finally, injecting TPU soft rubber through a bolt hole 13 of the shell 10 to enable the TPU soft rubber to be filled between the inner shell and the outer shell, taking care to prevent the TPU soft rubber from flowing into a power supply hole during injection, inserting a metal rod into the power supply hole in advance, coating a layer of grease on the metal rod, and pulling out the metal rod after the TPU soft rubber is solidified; when the outer shell 10 is sunken more and needs to be replaced, the outer shell 10 is cut from the joint of the two outer shells 10, and the TPU soft glue is not structural glue, so that the bonding strength of the TPU soft glue after pouring is not high, and the outer shell 10 is easily separated from the inner shell 20.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a mining environmental parameter detection ball, is including the spherical safety cover that is used for protecting detecting element, its characterized in that, the safety cover includes interior protection unit, cladding and is in outer protection unit on the interior protection unit, outer protection unit with interior protection unit is hollow structure's spheroid, be provided with a plurality of evenly distributed support element on the inner wall of outer protection unit, support element supports tightly on the outer wall of interior protection unit, outer protection unit with it has the buffer layer to fill between the interior protection unit.
2. the mining environmental parameter detection ball according to claim 1, wherein the support unit includes a cone and a cylindrical push sleeve nested on the cone, the push sleeve is fixedly disposed on the outer protection unit, the cone abuts against the inner protection unit, a blind hole for a tip of the cone to penetrate through is formed in the push sleeve, and when the push sleeve abuts against the cone, a gap is formed between the tip of the cone and a bottom of the blind hole.
3. the mining environment parameter detection ball of claim 2, wherein the tip of the cone is designed to be a circular surface, the overall outline is defined by two circular bottom surfaces with different areas and an arc-shaped side surface, the smaller circular bottom surface of the tip of the cone is located in the blind hole, the end of the push sleeve far away from the outer protection unit abuts against the side surface of the cone, the diameter of the circular bottom surface of the tip of the cone is smaller than the wall thickness of the push sleeve, and the wall thickness of the push sleeve is smaller than the thickness of the outer protection unit.
4. the mining environmental parameter detection ball as claimed in any one of claims 1 to 3, wherein the outer protection unit is formed by combining two hemispherical outer shells, the inner protection unit is formed by combining two hemispherical inner shells, the two outer shells are fixedly arranged, and the two inner shells are fixedly arranged.
5. the mining environmental parameter detection ball of claim 4, wherein two inner shells are fixed by bolts, and two outer shells are fixed by gluing; the two inner shells are respectively and fixedly provided with a first connecting column and a second connecting column which are the same in quantity, the bolt is tightly abutted to the first connecting column and is assembled in the second connecting column in a threaded manner, and the outer shell is provided with a bolt hole for the bolt to penetrate through.
6. The mining environmental parameter detection ball as claimed in claim 5, wherein three uniformly distributed probe sleeves are arranged on the top of one of the outer shells, the probe sleeves penetrate through the outer shells, a suspension ring hole is formed in the top of the other outer shell, a probe hole for the probe sleeve to penetrate through is formed in one of the inner shells, a suspension ring sleeve is arranged on the other inner shell, the suspension ring sleeve penetrates through the inner shell and is communicated with the suspension ring hole, and a suspension ring is arranged in the suspension ring sleeve in a threaded manner.
7. the mining environmental parameter detection ball of claim 6, wherein the inner shell and the outer shell are both provided with a communicated power supply hole, a rubber plug is arranged in the power supply hole, and the inner shell and the outer shell are both provided with a communicated temperature sensor window.
8. The mining environmental parameter detection ball of claim 7, wherein the outer shell, the inner shell, and the support unit are made of the same material and are all PC plastic, and the buffer layer is made of TPU soft rubber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920798509.3U CN209764161U (en) | 2019-05-29 | 2019-05-29 | Mining environmental parameter detection ball |
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| CN201920798509.3U CN209764161U (en) | 2019-05-29 | 2019-05-29 | Mining environmental parameter detection ball |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057409A (en) * | 2019-05-29 | 2019-07-26 | 徐州江煤科技有限公司 | A kind of mining environmental parameter detection ball |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057409A (en) * | 2019-05-29 | 2019-07-26 | 徐州江煤科技有限公司 | A kind of mining environmental parameter detection ball |
| WO2020238187A1 (en) * | 2019-05-29 | 2020-12-03 | 徐州江煤科技有限公司 | Environmental parameter detection ball for mining |
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