CN217156092U - Anchor rod anchoring force testing device - Google Patents
Anchor rod anchoring force testing device Download PDFInfo
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- CN217156092U CN217156092U CN202220663373.7U CN202220663373U CN217156092U CN 217156092 U CN217156092 U CN 217156092U CN 202220663373 U CN202220663373 U CN 202220663373U CN 217156092 U CN217156092 U CN 217156092U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
The utility model discloses an anchor rod anchoring force testing device, which comprises a jack body, a fixed sleeve mechanism and a balance mechanism; the fixing sleeve mechanism comprises a metal sleeve, an upper hollow movable threaded pipe and a fastening screw rod, and the metal sleeve is provided with a plurality of internal thread through holes; the plurality of upper movable threaded pipes are respectively arranged in the plurality of through holes of the metal sleeve, and the plurality of fastening screws are respectively arranged in the plurality of upper movable threaded pipes; the balance mechanism comprises a plurality of adjusting screws, a supporting plate with through holes and a lower hollow movable threaded pipe; the lower end of the supporting plate is provided with a plurality of internal thread screw holes, a plurality of lower movable threaded pipes are respectively arranged in the plurality of screw holes, and a plurality of adjusting screw rods are respectively arranged in the plurality of lower movable threaded pipes. This is novel has reduced the probability that the jack damaged to it is crooked to have prevented to draw the middle anchor rod, only needs to change last activity screwed pipe, lower activity screwed pipe or fastening screw, adjusting screw etc. of damage, gives the test department from this and has reduced unnecessary waste as far as, and has saved test cost.
Description
Technical Field
The utility model relates to a construction component test equipment technical field, what specifically say is an anchor rod anchoring force testing arrangement.
Background
The anchor rod is a common component in construction, and mainly comprises metal parts including steel, wood parts, polymer fibers, steel strands and the like. The anchor bolt support is a reinforcing support mode adopted in surface engineering such as side slopes and deep foundation pits and underground chamber construction such as tunnels and mining. The anchor bolt support has the advantages of low cost, good support effect, simple operation, flexible use, less occupied construction clearance and the like. In actual construction, the anchor rod is driven into a hole which is pre-drilled in an earth surface rock mass or a rock mass around a chamber, and then, anchoring materials such as cement mortar and the like are poured, so that the anchor rod, the anchoring materials, a stable rock mass and the like are combined together to generate a suspension effect, a combination beam effect and a reinforcement effect, and the aim of supporting is achieved. In the anchor rod production field and the construction side detection department, in order to test the anchoring force of anchor rods made of different materials under different anchoring materials (the anchoring materials are mainly cement mortar which is divided into M10/M15/M20 and the like, M10/M15/M20 represents different mortar strengths, other anchoring materials also contain chemical grout which is generally used less), different anchoring material strengths and different anchoring forces under different anchoring lengths (for example, the anchor rods are adopted to reinforce the side slope of the mountain, the construction department can select different types of anchor rod components, different types of anchoring materials, different anchoring lengths and different anchoring strengths according to the field geological conditions and the construction conditions, so that the anchoring force of the anchor rods made of different materials under different anchoring material types, different anchoring material strengths and different anchoring lengths needs to be tested under the laboratory conditions or the construction field, the anchoring force of the drawing equipment based on the oil jack (the hydraulic hollow jack driven by the oil pump) is detected, and data support is provided for actual design and construction.
In the process of detecting the anchoring force of the anchor rod by adopting the existing drawing equipment in a laboratory and a site, different types of anchor rods are generally inserted into different types and different strengths of anchoring materials respectively according to different depths before detection, and the detection is carried out after the anchoring materials reach the design strength. During detection, a hollow through hole of a middle plunger rod of a hydraulic jack is vertically sleeved on the outer side of an anchor rod, the lower part of the jack is positioned on the surface of concrete, then a fixed sleeve is sleeved on the upper end of the anchor rod positioned on the jack, a plurality of fastening screws around the fixed sleeve are screwed, the inner side ends of the fastening screws are respectively in close contact with the peripheral side ends of the anchor rod, and after the upper end of the anchor rod is effectively fixed, the anchor rod drawing procedure can be started. During drawing, the annular hollow plunger rod in the middle of the jack ascends to prop against the lower end of the fixing sleeve to ascend, and the fixing sleeve drives the upper end of the anchor rod to ascend. When the anchor is broken by the jack or the anchor and anchoring material are separated (anchor breakage is also a type of separation) during the test, the test is terminated. When the anchor rod is separated from the anchoring material (observed by naked eyes, and the oil pressure gauge value of an oil pump matched with the jack falls down after reaching a certain peak value), the condition that the anchoring force of the anchor rod under the strength and the anchoring depth of the anchoring material does not reach the required value to indicate that the anchoring force is insufficient is represented; if the anchor rod is broken (can be observed through naked eyes, and meanwhile, the numerical value of the oil pressure gauge suddenly drops downwards), the anchoring force of the anchor rod under the strength of the anchoring material and the anchoring length is required, and thus, a tester can obtain the anchoring force data of the first-hand anchor rod.
In the process of testing the anchoring force of an anchor rod by using the conventional drawing equipment (for example, the patent number 201910850437.7 of China and the patent name: a device for testing the bonding strength between sprayed concrete and surrounding rock), because a fastening screw of a fixing sleeve (locking anchorage) needs to be screwed or unscrewed frequently, and the fastening force required between the fastening screw of the fixing sleeve and the anchor rod is large, after a period of time, the external thread of the fastening screw and the internal thread part at the side end of the fixing sleeve are damaged easily, so that the fastening screw cannot play a good fastening force, the whole fixing sleeve cannot be used again, and unnecessary waste can be brought to a testing department by replacing a new fixing sleeve. Moreover, fastening screw because inboard direct and stock outside contact, in order to obtain great fastening force, the tester need screw fastening screw as far as possible, and under the ascending effort of jack plunger rod, the inboard of screw rod and stock contact site warp extremely easily (for example because pressure, screw rod side warp), like this when follow-up fastening screw silk portion damages need be changed, because fastening screw's medial extremity warp will lead to it can't follow the internal thread of fixed cover back-out, fixed cover can't continue to use, can also cause the fixed cover of more changing to bring unnecessary waste for the test department.
The other point is that when the existing drawing equipment detects the anchoring force of the anchor rod, the surface of a material (mortar concrete is in site construction) of an indoor test simulation rock-soil body is not flat actually, so that when the surface unevenness test of the material of the indoor test simulation rock-soil body is carried out, the jack is in a skew state actually, the upper end of a plunger rod of the jack cannot be in complete effective contact with the lower end of a fixed sleeve, and therefore, the normal use of the jack is influenced by the uneven stress on the upper end of the plunger rod of the jack and the hidden danger of damage of the jack is caused. And because the applied acting force is uneven, the anchor rod is easy to be inclined in the drawing process, and the effective data of the test is influenced (after the anchor rod is inclined, the force for drawing the anchor rod is not vertical any more, and the inclination degree is too large, so that the jack is not beneficial to ejecting the anchor rod).
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned insufficiency, the present invention provides a method. In order to overcome the defects that the damage of related parts of a fixed sleeve is easily caused in the anchoring force test of the anchor rod by the existing drawing equipment, the influence on the normal use of the jack can be caused and the hidden damage danger exists when the jack can not be effectively ensured to work in the optimal state, and the upper end of the anchor rod is inclined due to the probability and the good test effect can not be obtained, the utility model provides a hydraulic hollow jack based on the driving of an oil pump as the power equipment for drawing the anchor rod, and the hydraulic hollow jack is provided with a balance mechanism for preventing the inclination of the jack in the working process and a fixed sleeve mechanism for conveniently replacing a movable threaded pipe, and in the working process, the jack can be in a horizontal and vertical state as far as possible by adjusting the different heights of a plurality of supporting legs at the lower end of the balance mechanism, the jack is ensured to work in the optimal state as far as possible, the probability of damage is reduced, and the anchor rod is prevented from being inclined in the drawing process, the anchor rod drawing test effect is as good as possible, when the internal threads of the upper movable threaded pipe and the lower movable threaded pipe of the fixed sleeve mechanism and the balance mechanism, the internal threads of the fastening screw rod and the external threads of the adjusting screw rod are damaged, only the upper movable threaded pipe and the lower movable threaded pipe or the fastening screw rod, the adjusting screw rod and the like need to be replaced, the fixed sleeve mechanism and the balance mechanism do not need to be integrally replaced, unnecessary waste is reduced for a test department as much as possible, and the cost is saved.
The utility model is realized in such a way, an anchor rod anchoring force testing device is constructed, which comprises a jack body and is characterized in that; also has a fixed sleeve mechanism and a balance mechanism; the fixing sleeve mechanism comprises a hollow metal sleeve, an upper hollow movable threaded pipe and a fastening screw rod, wherein the upper hollow movable threaded pipe has external threads and internal threads; the upper movable threaded pipe and the fastening screw are respectively provided with the same plurality of threaded pipes and the number of threaded through holes is consistent with that of the internal threaded through holes at the side end of the metal sleeve; the plurality of upper movable threaded pipes are respectively arranged in the plurality of through holes of the metal sleeve, and the plurality of fastening screws are respectively arranged in the plurality of upper movable threaded pipes; the balance mechanism comprises a plurality of adjusting screws with contact plates at the lower ends, a supporting plate with through holes, and a plurality of lower hollow movable threaded pipes with external threads and internal threads; the lower end of the supporting plate is annularly and vertically distributed and is provided with a plurality of internal thread screw holes at certain intervals, a plurality of lower movable threaded pipes are respectively arranged in the plurality of screw holes at the lower end of the supporting plate, and a plurality of adjusting screws are respectively arranged in the plurality of lower movable threaded pipes; the middle through hole of the jack body and the supporting plate through hole are vertically sleeved on the outer side of the anchor rod, the lower portion of the jack is located at the upper end of the supporting plate, the contact plates at the lower portions of the adjusting screws are respectively located on the material surface of the indoor test simulation rock-soil body, and the hollow portion of the metal sleeve of the fixing sleeve mechanism is located on the outer side of the upper end of the anchor rod and located at the upper end of the hollow plunger rod of the jack body.
The anchor rod anchoring force testing device is characterized in that the anchor rod anchoring force testing device is provided with a testing device; the length of the upper hollow movable threaded pipe is smaller than that of the internal thread through hole of the metal sleeve, the length of the fastening screw is larger than that of the internal thread through hole of the metal sleeve, and the inner diameter of the hollow part of the metal sleeve is larger than the outer diameter of the anchor rod.
The anchor rod anchoring force testing device is characterized in that the anchor rod anchoring force testing device is provided with a testing device; the length of the lower hollow movable threaded pipe is smaller than that of the lower end threaded hole of the support plate, the inner diameter of the through hole of the support plate is larger than the outer diameter of the anchor rod, and the outer diameter of the through hole of the support plate is larger than the outer diameter of the lower end of the cylinder of the jack body.
The anchor rod anchoring force testing device is characterized in that the anchor rod anchoring force testing device is provided with a testing device; each adjusting screw is matched with a locking nut.
The anchor rod anchoring force testing device is characterized in that the anchor rod anchoring force testing device is provided with a testing device; the outer diameter of the metal sleeve is larger than the inner diameter of the hollow plunger rod of the jack body.
The utility model has the advantages of as follows: the utility model discloses earlier overlap backup pad middle part through-hole in the stock outside before the use, the material surface contact of the indoor test simulation ground body of backup pad lower extreme respectively with the stock side with the many adjusting screw contact plates of backup pad lower extreme, through adjusting the not co-altitude that many adjusting screw lie in the backup pad lower extreme respectively, can guarantee that the jack on backup pad upper end and upper portion keeps the level vertical state as far as possible, then the tester overlaps the annular cover of fixed cover mechanism in the stock upper end outside, just can begin to carry out the test of stock fastening force after screwing fastening screw respectively. This novel test procedure is identical with current test method completely, opens the fuel tap of the supporting oil pump of jack body after, and the hollow plunger rod of jack will push up annular cover and stock, just reaches the test mesh after stock and anchor material separation. This is novel, guaranteed that the jack is worked as far as possible under the optimum, the probability of its damage has been reduced, and it is crooked to have prevented drawing the well stock, reach good stock as far as possible and draw test effect, and at the last movable threaded pipe of fixed cover mechanism and balance mechanism, the internal thread and the fastening screw of lower movable threaded pipe, when adjusting screw's external screw thread damaged, only need to move about the threaded pipe, lower movable threaded pipe or fastening screw, adjusting screw etc. change, need not wholly change fixed cover mechanism and balance mechanism, it is extravagant to have reduced unnecessary for the testing department from this, and saved the test cost. Based on the above, so the utility model discloses good application prospect has.
Drawings
FIG. 1 is a schematic view of the structure and a part of the present invention;
fig. 2 is a schematic view showing the structure and a partial enlargement of the fixing sleeve mechanism of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1-2, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, 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.
The utility model provides an anchor rod anchoring force testing device through the improvement, which is shown in figures 1-2 and can be implemented as follows; the hydraulic hollow jack comprises a hydraulic hollow jack body 1 driven by an oil pump, and further comprises a fixed sleeve mechanism and a balance mechanism; the fixing sleeve mechanism comprises an annular metal sleeve 21 with a circular through hole in the middle, an upper hollow movable threaded pipe 22 with external threads and internal threads, and a fastening screw 23, wherein three internal thread through holes 211 are longitudinally distributed between the outer ring in the middle of the metal sleeve 21 and the hollow inner ring at certain intervals; the upper movable threaded pipe 22 and the fastening screw 23 are respectively provided with three same threads and the number of the upper movable threaded pipe and the fastening screw is consistent with that of the through holes 211 in the internal threads at the side end of the annular metal sleeve, and the outer side of each upper movable threaded pipe 22 is provided with a hollow hexagonal screw head 221 (which is beneficial to wrench operation, and the screw head 221 is positioned at the outer side end of the metal sleeve 21 and is in close contact with the metal sleeve); the three upper movable threaded pipes 22 are longitudinally screwed into the internal threads of the three through holes 211 of the metal sleeve through the external threads of the three upper movable threaded pipes respectively, and the three fastening screw rods 23 are longitudinally screwed into the internal threads of the three upper movable threaded pipes 22 through the external threads of the three fastening screw rods respectively; the balance mechanism comprises three external thread adjusting screws 31 with circular contact plates 311 at the lower ends (the outer diameter of the contact plates 311 is 4.5cm larger than that of the adjusting screws 31), a circular support plate 32 with a through hole in the middle (the outer diameter of the support plate 32 is 5cm larger than that of the barrel body of the jack body 1), and three lower hollow movable threaded pipes 33 with external threads and internal threads, wherein a hollow hexagonal screw head 331 (beneficial to wrench operation, the screw head 331 is positioned at the lower end of the support plate 32 and is in close contact with the support plate 33) is arranged at the lower side of each lower movable threaded pipe 33; the outer side of the lower end of the supporting plate 32 is annularly and vertically distributed, three internal thread screw holes 321 are arranged at intervals at certain intervals, the thickness of each screw hole 321 is half of that of the supporting plate 32, the three lower movable screw tubes 33 are vertically screwed into the internal threads of the three screw holes 321 of the supporting plate through the external threads of the three lower movable screw tubes 33 respectively, and the three adjusting screw rods 31 are vertically screwed into the internal threads of the three lower movable screw tubes 33 through the external threads of the three adjusting screw rods 31 respectively; the middle through hole 101 (hollow annular plunger rod 101) of the jack body 1 and the through hole in the middle of the support plate 32 are vertically sleeved on the outer side of the anchor rod 4, the lower portion of the jack body 1 is located at the upper end of the support plate 32, the three lower contact plates 311 of the adjusting screws are respectively distributed in an annular mode at certain intervals and located on the surface of the material 5 of the indoor test simulation rock-soil body, and the middle through hole of the metal sleeve 21 of the fixing sleeve mechanism is located on the outer side of the upper end of the anchor rod 5 and located on the upper end of the hollow plunger rod of the jack body 1.
As shown in fig. 1-2, the length of the upper hollow movable threaded pipe 22 is less than the length of the internal threaded through hole 211 of the metal sleeve 21 by 2mm, the length of the fastening screw 23 is greater than the length of the internal threaded through hole 211 of the metal sleeve 21 by 4cm, and the inner diameter of the inner middle circular through hole 212 of the metal sleeve 21 is greater than the outer diameter of the anchor rod 4 by 10 mm. The length of the lower hollow movable threaded pipe 33 is less than the length of the lower end threaded hole 321 of the support plate 32 by 2mm, the inner diameter of the inner side circular through hole of the support plate 32 is greater than the outer diameter of the anchor rod 4 by 10mm, and the outer diameter is greater than the outer diameter of the lower end of the cylinder 102 of the jack body by 4 cm. Each adjusting screw 31 is provided with a locking nut 34. The outer diameter of the metal sleeve 21 is 3cm larger than the inner diameter of the hollow plunger rod of the jack body 1.
As shown in fig. 1-2, before using the utility model, the middle through hole of the supporting plate 32 of the balance mechanism is firstly sleeved outside the anchor rod 4, and three adjusting screw contact plates 311 at the lower end of the supporting plate 32 are annularly distributed and respectively contacted with the surface of the material 5 of the indoor experimental simulated rock-soil body at the side end of the anchor rod; when the upper end of the supporting plate 32 is not horizontal, the tester can respectively adjust the three adjusting screws 31 to different heights at the lower end of the supporting plate 32 according to the requirements, so that the upper end of the supporting plate 32 and the jack body 1 can be ensured to be kept in a horizontal and vertical state as much as possible; during adjustment, a tester rotates the adjusting screw 31 by hand or tool (pipe wrench or vice), the adjusting screw 31 can reach a required height by going up or down along the internal thread of the lower movable threaded pipe 33, and after the height is adjusted in place, the tester upwards adjusts the locking nut 34, so that the upper end of the locking nut 34 is in close contact with the lower end of the supporting plate 32, and the locking nut 34 can support the adjusting screw 31 well under stress. After the balance mechanism is adjusted, a tester sleeves the hollow annular plunger rod 101 in the middle of the jack body 1 on the outer side of the anchor rod 4, the anchor rod 4 is located in the hollow middle of the plunger rod 101 as far as possible, and then the tester sleeves the metal sleeve 21 of the fixed sleeve mechanism on the outer side of the upper end of the anchor rod 4, respectively screws three fastening screws 23, the inner sides of the three fastening screws 23 and the periphery of the anchor rod 4 to be in close contact with each other, and fastens the anchor rod 4, and then the anchor force test of the anchor rod 4 can be started. The novel test process is completely consistent with the existing test method, after an oil valve of a matched oil pump of the jack body 1 is opened, the annular metal sleeve 21 and the anchor rod 4 can be pushed upwards by the hollow plunger rod 101 of the jack body 1, and the test purpose can be achieved after the anchor rod 4 is separated from the material 5 of the simulated rock-soil body in an indoor test (the anchor rod 4 is broken and is also separated); in the test, when the anchor rod 4 is upwards jacked and broken by the jack body 1 or the anchor rod 4 is separated from the material 5 of the indoor test simulation rock-soil body (the numerical value of an oil pump oil pressure gauge matched with the jack falls after reaching a certain peak value through visual observation), the condition that the anchoring force of the anchor rod 4 under the strength and the anchoring depth of the anchoring material does not reach the required condition that the anchoring force is insufficient is represented; if the anchor rod 4 is broken (can be observed through naked eyes, and meanwhile, the numerical value of the oil pressure gauge suddenly drops), the anchoring force of the anchor rod 4 under the strength of the anchoring material and the anchoring length is required, and thus, a tester can obtain the data of the anchoring force of the first anchor rod.
As shown in fig. 1-2, in the use of the present invention, when the fastening screw 23 is damaged or the internal thread of the upper hollow movable threaded pipe 22 is damaged due to various reasons (the length of the upper hollow movable threaded pipe 22 is less than the length of the internal thread through hole 211 of the annular metal sleeve, and no displacement occurs during testing and adjustment, the external thread is not damaged, and the maximum probability of damage is only between the internal thread and the external thread of the fastening screw 23), the damaged upper hollow movable threaded pipe 22 and the fastening screw 23 are directly screwed out from the internal thread through hole 211 of the annular metal sleeve 21 by using a wrench or the like, and then a new upper hollow movable threaded pipe 22 or fastening screw 23 is replaced. When the adjusting screw 31 is damaged or the internal thread of the lower hollow movable threaded pipe 33 is damaged due to various reasons (the screw head 331 is located at the lower end of the support plate 32 and the two are in close contact, during test adjustment, the lower hollow movable threaded pipe 33 cannot be displaced, the external thread cannot be damaged, and the maximum possibility of damage is only damage between the internal thread and the external thread of the adjusting screw 31), the damaged lower hollow movable threaded pipe 33 and the adjusting screw 31 are directly screwed out from the internal thread of the three screw holes 321 below the support plate 32 by using a wrench and the like, and then a new lower hollow movable threaded pipe 33 or adjusting screw 31 is replaced. In the utility model, the jack body 1 can be in the horizontal and vertical state as far as possible by adjusting the different heights of the three supporting feet (adjusting screw) at the lower end of the balance mechanism, thereby ensuring that the jack body 1 works in the best state as far as possible, reducing the probability of damage, and prevents the anchor rod 4 from being inclined in the drawing process, can achieve good drawing test effect of the anchor rod 4 as much as possible, when the internal threads of the upper movable threaded pipe 22 and the lower movable threaded pipe 33 of the fixed sleeve mechanism and the balance mechanism and the external threads of the fastening screw 23 and the adjusting screw 31 are damaged, only the upper movable threaded pipe 22, the lower movable threaded pipe 33 or the fastening screw 23, the adjusting screw 31 and the like need to be replaced, and the whole of the fixed sleeve mechanism and the balance mechanism does not need to be replaced, so that unnecessary waste is reduced to the greatest extent for a testing department, and the testing cost is saved. 41 is a preset guide rubber tube which is used for conveniently inserting the anchor rod 4 in the material of the simulated rock-soil body in the indoor test.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An anchor rod anchoring force testing device comprises a jack body and is characterized in that the jack body is provided with a jack body; also has a fixed sleeve mechanism and a balance mechanism; the fixing sleeve mechanism comprises a hollow metal sleeve, an upper hollow movable threaded pipe and a fastening screw rod, wherein the upper hollow movable threaded pipe has external threads and internal threads; the upper movable threaded pipe and the fastening screw are respectively provided with the same plurality of threaded pipes and the number of threaded through holes is consistent with that of the internal threaded through holes at the side end of the metal sleeve; the plurality of upper movable threaded pipes are respectively arranged in the plurality of through holes of the metal sleeve, and the plurality of fastening screws are respectively arranged in the plurality of upper movable threaded pipes; the balance mechanism comprises a plurality of adjusting screws with contact plates at the lower ends, a supporting plate with through holes, and a plurality of lower hollow movable threaded pipes with external threads and internal threads; the lower end of the supporting plate is annularly and vertically distributed and is provided with a plurality of internal thread screw holes at certain intervals, a plurality of lower movable threaded pipes are respectively arranged in the plurality of screw holes at the lower end of the supporting plate, and a plurality of adjusting screws are respectively arranged in the plurality of lower movable threaded pipes; the middle through hole and the supporting plate through hole of the jack body are vertically sleeved on the outer side of the anchor rod, the lower portion of the jack is located at the upper end of the supporting plate, the contact plates at the lower portions of the adjusting screws are respectively located on the material surface of the indoor test simulation rock-soil body, and the hollow portion of the metal sleeve of the fixing sleeve mechanism is located on the outer side of the upper end of the anchor rod and located on the upper end of the hollow plunger rod of the jack body.
2. An anchor rod anchoring force testing device according to claim 1, wherein; the length of the upper hollow movable threaded pipe is smaller than that of the internal thread through hole of the metal sleeve, the length of the fastening screw is larger than that of the internal thread through hole of the metal sleeve, and the inner diameter of the hollow part of the metal sleeve is larger than the outer diameter of the anchor rod.
3. An anchor rod anchoring force testing device according to claim 1, wherein; the length of the lower hollow movable threaded pipe is smaller than that of the lower end threaded hole of the support plate, the inner diameter of the through hole of the support plate is larger than the outer diameter of the anchor rod, and the outer diameter of the through hole of the support plate is larger than the outer diameter of the lower end of the cylinder of the jack body.
4. An anchor rod anchoring force testing device according to claim 1, wherein; each adjusting screw is matched with a locking nut.
5. An anchor rod anchoring force testing device according to claim 1, wherein; the outer diameter of the metal sleeve is larger than the inner diameter of the hollow plunger rod of the jack body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220663373.7U CN217156092U (en) | 2022-03-25 | 2022-03-25 | Anchor rod anchoring force testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220663373.7U CN217156092U (en) | 2022-03-25 | 2022-03-25 | Anchor rod anchoring force testing device |
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| Publication Number | Publication Date |
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| CN217156092U true CN217156092U (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220663373.7U Active CN217156092U (en) | 2022-03-25 | 2022-03-25 | Anchor rod anchoring force testing device |
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| Country | Link |
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| CN (1) | CN217156092U (en) |
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2022
- 2022-03-25 CN CN202220663373.7U patent/CN217156092U/en active Active
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