CN220772075U - Measuring tape hooking device with tape hook and measuring tape - Google Patents
Measuring tape hooking device with tape hook and measuring tape Download PDFInfo
- Publication number
- CN220772075U CN220772075U CN202322376101.6U CN202322376101U CN220772075U CN 220772075 U CN220772075 U CN 220772075U CN 202322376101 U CN202322376101 U CN 202322376101U CN 220772075 U CN220772075 U CN 220772075U
- Authority
- CN
- China
- Prior art keywords
- hook
- tape
- measuring tape
- measuring
- hooking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims description 38
- 238000010276 construction Methods 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 2
- 230000006872 improvement Effects 0.000 description 17
- 230000009286 beneficial effect Effects 0.000 description 16
- 238000005259 measurement Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Tape Measures (AREA)
Abstract
The utility model belongs to the technical field of length measuring devices, and particularly provides a measuring tape hooking device with a tape hook and a measuring tape. The hook device for the measuring tape with the tape hook comprises a body, wherein a hook groove for hooking the tape hook is formed in the body, one end, close to the measuring tape, of the body is defined to be the front end, the thickness direction of the measuring tape is defined to be the up-down direction, and the body is further provided with a zero setting end flush with the front wall surface of the hook groove. The measuring tape comprises the measuring tape hooking device with the tape hook. When the measuring tape is used, the measuring tape hook is connected with the hooking device, the end face of the zero end is kept attached to the end of the measured piece, compared with the scheme that the end of the measured piece is hooked by the measuring tape hook, the hooking connection structure of the hooking device and the end of the measured piece is more stable, meanwhile, the measuring tape is convenient for a worker to hold and operate, the time is saved, and the efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of length measuring devices, and particularly relates to a measuring tape hooking device with a tape hook and a measuring tape.
Background
When the oil (gas) well is completed and repaired, the length measurement of the oil (gas) pipeline on site is required. One end of the oil (gas) pipe is a coupling, the end part of the coupling is provided with a chamfer, the other end of the coupling is provided with a screw thread, and the length of the oil (gas) pipe is longer, so that two persons are required to work cooperatively. During measurement, a steel tape with a tape hook can be used, one person holds the 0 scale end of the tape hook of the steel tape, hooks the tape hook on the end face of the pipeline, and the other person pulls the tape to open the tape to the end face of the other end of the pipeline, so that reading measurement is completed.
However, the steel tape has a small hook, is difficult to stably hook at the end of a coupling or a screw thread, is inconvenient to operate, and frequently has a unhooking phenomenon during measurement, so that a worker is required to frequently adjust the hook. Moreover, when the ruler hook is hooked at the end part of the coupling or the screw thread, the handheld or pressing force points are small, the ruler hook is difficult to stably keep at a stable position, and the measurement efficiency is low.
Disclosure of Invention
The utility model aims to provide a measuring tape hooking device with a tape hook, which solves the technical problem that in the prior art, the tape hook is difficult to stably hook at the end part of a pipeline, so that the measuring efficiency is low. The utility model also aims to provide a measuring tape for solving the same technical problems as above.
In order to achieve the above purpose, the technical scheme of the tape hook measuring tape hooking device provided by the utility model is as follows:
the utility model provides a tape measure hook measuring tape hooking device, includes the body, the body is equipped with the hook groove that is used for hooking the chi hook, defines that the body is close to the one end of measuring tape be the front end, measuring tape thickness direction is the upper and lower direction, the body still have with the zero setting end of wall parallel and level before the hook groove.
The beneficial effects are that: the utility model provides a measuring tape hooking device which can be used for measuring the length of a pipeline by a measuring tape with a measuring tape hook. When the measuring tape is used, the ruler hook is placed in the hook groove, the ruler hook is stably hooked on the body, then the zero end face of the body is attached to the end part of the pipeline, the 0 scale of the measuring tape is flush with the end part of the pipeline, and the measuring work can be conveniently completed on the basis. Compared with the scheme that the ruler hook is hooked on the end part of the pipeline in the prior art, the utility model is attached to the end part of the pipeline to be measured through the hooking device, so that the hooking stability is improved, the handheld operation of a worker is facilitated, and the measuring efficiency is improved.
As a further improvement, the depth of the hook groove is not smaller than the height of the ruler hook for matching with the hook groove.
The beneficial effects are that: the hook groove can vertically cover the ruler hook, so that the connection stability of the ruler hook and the hooking device is improved. Meanwhile, the upper pressing piece is convenient to install above the body, and the upper pressing piece is guaranteed not to crush the ruler hook.
As a further improvement, the surface with the scale is defined as the upper part, the body comprises a downward boss, and the front wall surface of the boss is flush with the front wall surface of the hook groove and forms the zero setting end.
The beneficial effects are that: at this point, the measured value is conveniently read.
As a further improvement, the upper pressing piece can be arranged relatively close to or far away from the upper pressing piece, the upper pressing piece is used for pressing the measuring tape between the upper pressing piece and the body, and the hooking device further comprises a fastening piece used for locking the upper pressing piece and the body.
The beneficial effects are that: the upper pressing piece is clamped and attached to the surface of the ruler body, so that the stability of connection of the hooking device and the measuring ruler is further improved.
As a further improvement, the upper pressing piece and the body are of a split structure.
The beneficial effects are that: the split structure is convenient for manufacturing and processing, and the cost is lower.
As a further improvement, the fastener is a bolt assembly, and the upper pressing piece and the body are provided with bolt holes corresponding to each other.
As a further improvement, the fastener is a screw, one of the upper pressing piece and the body is provided with a threaded hole, and the other is provided with a threaded hole.
The beneficial effects are that: the clamping force of the screw or the bolt is large, the screw or the bolt is convenient to repeatedly disassemble and use, and the cost is low.
As a further improvement, the body is also provided with a handle.
The beneficial effects are that: the end of the pipeline can be aligned by hand during measurement, and the efficiency is further improved.
As a further improvement, the upper and lower heights of the zero ends are larger than the height of the ruler hook matched with the zero ends.
The beneficial effects are that: the connection stability of the hooking device and the pipeline during measurement is further improved.
In order to achieve the above purpose, the technical scheme of the measuring tape provided by the utility model is as follows:
the measuring tape comprises a tape hook, the tape hook is hooked on a tape hook measuring tape hooking device, the tape hook measuring tape hooking device comprises a body, a hooking groove for hooking the tape hook is formed in the body, one end, close to the measuring tape, of the body is defined to be the front end, the thickness direction of the measuring tape is defined to be the up-down direction, and the body is further provided with a zero setting end flush with the front wall surface of the hooking groove.
The beneficial effects are that: the utility model provides a measuring tape hooking device which can be used for measuring the length of a pipeline by a measuring tape with a measuring tape hook. When the measuring tape is used, the ruler hook is placed in the hook groove, the ruler hook is stably hooked on the body, then the zero end face of the body is attached to the end part of the pipeline, the 0 scale of the measuring tape is flush with the end part of the pipeline, and the measuring work can be conveniently completed on the basis. Compared with the scheme that the ruler hook is hooked on the end part of the pipeline in the prior art, the utility model is attached to the end part of the pipeline to be measured through the hooking device, so that the hooking stability is improved, the handheld operation of a worker is facilitated, and the measuring efficiency is improved.
As a further improvement, the depth of the hook groove is not smaller than the height of the ruler hook for matching with the hook groove.
The beneficial effects are that: the hook groove can vertically cover the ruler hook, so that the connection stability of the ruler hook and the hooking device is improved. Meanwhile, the upper pressing piece is convenient to install above the body, and the upper pressing piece is guaranteed not to crush the ruler hook.
As a further improvement, the surface with the scale is defined as the upper part, the body comprises a downward boss, and the front wall surface of the boss is flush with the front wall surface of the hook groove and forms the zero setting end.
The beneficial effects are that: at this point, the measured value is conveniently read.
As a further improvement, the upper pressing piece can be arranged relatively close to or far away from the upper pressing piece, the upper pressing piece is used for pressing the measuring tape between the upper pressing piece and the body, and the hooking device further comprises a fastening piece used for locking the upper pressing piece and the body.
The beneficial effects are that: the upper pressing piece is clamped and attached to the surface of the ruler body, so that the stability of connection of the hooking device and the measuring ruler is further improved.
As a further improvement, the upper pressing piece and the body are of a split structure.
The beneficial effects are that: the split structure is convenient for manufacturing and processing, and the cost is lower.
As a further improvement, the fastener is a bolt assembly, and the upper pressing piece and the body are provided with bolt holes corresponding to each other.
As a further improvement, the fastener is a screw, one of the upper pressing piece and the body is provided with a threaded hole, and the other is provided with a threaded hole.
The beneficial effects are that: the clamping force of the screw or the bolt is large, the screw or the bolt is convenient to repeatedly disassemble and use, and the cost is low.
As a further improvement, the body is also provided with a handle.
The beneficial effects are that: the end of the pipeline can be aligned by hand during measurement, and the efficiency is further improved.
As a further improvement, the upper and lower heights of the zero ends are larger than the height of the ruler hook matched with the zero ends.
The beneficial effects are that: the connection stability of the hooking device and the pipeline during measurement is further improved.
Drawings
FIG. 1 is a cross-sectional view showing the construction of an embodiment 1 of the measuring tape hooking device with tape hook of the present utility model;
fig. 2 is a side view of an embodiment 1 of the tape hook measuring tape hooking device of the present utility model.
Reference numerals illustrate:
1. a body; 2. an anti-slip pad; 3. a pressing piece; 4. a bolt; 5. a nut; 11. a hook groove; 12. a handle.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model 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 utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
It is noted that relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" or the like is not excluded from a process, method, or the like that includes the element.
In the description of the present utility model, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; either directly, indirectly through intermediaries, or in communication with the interior of the two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art in specific cases.
The present utility model is described in further detail below with reference to examples.
The utility model provides a specific embodiment 1 of a measuring tape hooking device with a tape hook:
the device for hooking a measuring tape with a tape hook provided in this embodiment is shown in fig. 1 and 2, and includes a body 1, wherein the body 1 is provided with a hook groove 11 for hooking the tape hook, specifically, the body 1 is an inverted L-shaped body, the thickness direction of the measuring tape is defined as the up-down direction, and the surface with scales is on the upper side, when the device is used, one end close to the measuring tape is on the front side, the body 1 is provided with a downward boss, the front wall surface of the boss is flush with the front wall surface of the hook groove 11, namely, when the tape hook is hooked in the hook groove 11, the 0 scale of the measuring tape is aligned with the front wall surface of the boss, and the front wall surface of the boss is a zero alignment end.
When the measuring device is used, such as when the length of a pipeline is measured by matching with a steel tape, the boss hook of the body 1 is arranged at the end part of the pipeline, the tape hook of the tape is hooked in the hook groove 11 of the body, the tape is stably connected with the body 1, the measuring device is suitable for measuring the length of the pipeline by using a pipeline coupling or a screw button, and compared with the scheme of measuring the length of the pipeline by using the steel tape only, the connecting relationship between the body 1 and the end part of the pipeline is more stable, and the measuring device is convenient for a worker to hold and operate, so that the measuring efficiency is improved.
In this embodiment, the depth of the hook groove 11 is not smaller than the height of the ruler hook, so that the coating effect of the hook groove 11 on the ruler hook is realized. In this embodiment, the width of the hook groove 11 is not smaller than the width of the ruler hook, so that the connection stability between the hook groove 11 and the ruler hook can be significantly improved. In addition, in this embodiment, the boss has a protrusion height greater than that of the ruler hook engaged with the hook groove 11, that is, the height of the zero end is greater than that of the ruler hook, and when the boss is connected with the pipe, a longer radial (opposite pipe) hooking length is provided, so that hooking stability is further improved.
In this embodiment, the hook device still includes last casting die 3, goes up casting die 3 and body 1 and is detachable body structure, goes up casting die 3 and body 1 and passes through the fastener to be fixed, goes up the clamping position that forms the centre gripping measuring tape face between casting die 3 and the body 1, when using, when hooking the chi hook in the hook groove, will go up casting die 3 and paste the pressure at the measuring tape face, utilize the fastener locking, measuring tape and hook device form a stable fixed connection this moment, further improved measuring stability. In this embodiment, a non-slip mat 2 is also provided between the upper press 3 and the body 1. In particular, the non-slip mat 2 may be a rubber mat or wool mat connected to the upper press 3 or the body 1, or may be another non-slip mat placed between the upper press 3 and the body 1 when the upper press 3 is installed. The function of the anti-slip pad is to increase the friction force between the measuring ruler and the upper pressing piece 3 and the body 1, and further improve the connection stability of the measuring ruler and the hooking device.
The fastener in this embodiment is the bolt subassembly, and specifically, the bolt subassembly includes bolt 4 and nut 5, and nut 5 is hand screw nut, and the hand of being convenient for is screwed, is equipped with corresponding complex bolt hole between last casting die 3 and body 1 for bolt 4 passes, and bolt 4 one end is the screw thread section, and the other end is equipped with the hexagonal structure. The bolt components are provided with three groups, two groups are respectively arranged at the left side and the right side of the front end, and one group is arranged at the rear end, and the distance between the bolt components at the left side and the right side is larger than the width of the measuring tape so as to meet the requirement of putting in the measuring tape. Meanwhile, in order to facilitate the fit between the lower plane of the body 1 and the periphery of the measured piece, the lower planes of the bolts at the left side and the right side do not exceed the lower plane of the body 1.
In this embodiment, the body 1 is further configured with a handle 12, and when measuring, the handle 12 can be held by hand to quickly complete connection of the hooking device and the pipeline, so that the efficiency is high. Specifically, the handle 12 may be integrally formed with the body 1, or may be connected to the body 1 by a bolt.
The difference between the specific embodiment 2 of the measuring tape hooking device with the tape hook and the embodiment 1 is that: in embodiment 1, the depth of the hook groove 11 is larger than the height of the rule hook, and the width of the hook groove 11 is larger than the width of the rule hook. In this embodiment, the depth of the hook groove 11 may be slightly smaller than the height of the rule hook, and the width of the hook groove 11 is slightly smaller than the width of the rule hook, so that the rule hook can be hooked on the body 1.
The difference between the specific embodiment 3 of the measuring tape hooking device with the tape hook and the embodiment 1 is that: in embodiment 1, the body 1 is provided with a downward projection, and the front wall surface of the projection is flush with the front wall surface of the hook groove 11 to form a zero-setting end. In this embodiment, the body 1 is provided with an upward protrusion, and the protrusion is provided with a avoidance position for avoiding the ruler hook, and the front wall surface of the upward protrusion is flush with the front wall surface of the hook groove to form a zero-alignment end. At this time, during the measuring operation, one surface of the measuring tape scale faces the center of the pipe, and the structure of embodiment 1 is more convenient for reading the measuring tape scale than that of embodiment 1.
The difference between the specific embodiment 4 of the measuring tape hooking device with the tape hook and the embodiment 1 is that: in embodiment 1, the fastener is a bolt assembly. In the present embodiment, the fastener is a screw, one of the upper pressing member and the body has a screw hole, and the other has a screw hole for passing the screw therethrough, and the same effect as the bolt assembly can be achieved.
The difference between the specific embodiment 5 of the measuring tape hooking device with the tape hook and the embodiment 1 is that: in embodiment 1, the fastener is a bolt assembly. In this embodiment, the fastener is a steel cable, and after the upper pressing member is pressed against the measuring tape, the upper pressing member and the body are bound together by the steel cable.
The difference between the specific embodiment 6 of the measuring tape hooking device with the tape hook and the embodiment 1 is that: in embodiment 1, the hooking means further comprise an upper presser. In this embodiment, the hooking device only includes the body, and this time has the advantage that stability is good efficient as compared with the scheme that only removes the hook pipeline tip through the chi hook.
The difference between the specific embodiment 7 of the measuring tape hooking device with the tape hook and the embodiment 1 is that: in embodiment 1, the upper pressing member and the body are of a split structure, and the upper pressing member is detached from the body and installed close to the body. In this embodiment, the upper pressing member is hinged to the body, and can rotate relative to the body, so as to achieve close and far matching.
Examples of measuring tape in the present utility model:
the measuring tape includes a tape hook which is hooked on the measuring tape hooking device, and an embodiment of the measuring tape hooking device, that is, the tape hook measuring tape hooking device described in any one of embodiments 1 to 7 of the above-described tape hook measuring tape hooking device, is not described in detail herein. The measuring tape can be used as a special device for the field of measured parts which are difficult to directly use the hook of the measuring tape for hooking measurement.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a tape measure hook measuring tape hooking device, its characterized in that includes the body, the body is equipped with the hook groove that is used for hooking the chi hook, defines that the body is close to the one end of measuring tape be the front end, measuring tape thickness direction is the upper and lower direction, the body still have with the zero setting end of hook groove front wall parallel and level.
2. The tape hook measuring tape hooking device of claim 1 wherein the depth of the hooking groove is no less than the height of the tape hook for mating therewith.
3. The tape hook device of claim 1, wherein the scale-carrying surface of the tape is defined as being the upper surface, the body includes a downward boss, and the front wall surface of the boss is flush with the front wall surface of the hook slot and forms the zero-setting end.
4. The hook and loop type measuring tape hooking device of claim 2 wherein the upper body is provided with an upper pressing member relatively close to or far from the upper body, the upper pressing member being adapted to press the measuring tape between the upper pressing member and the upper body, the hook and loop type measuring tape hooking device further comprising a fastener for locking the upper pressing member and the upper body.
5. The hook and loop fastening device of claim 4, wherein said upper presser is of a split construction with respect to the body.
6. The hook and loop fastening device according to claim 4, wherein the fastening member is a bolt assembly, and the upper pressing member and the body are provided with bolt holes corresponding to each other.
7. The tape hook device of claim 4, wherein the fastener is a screw, one of the upper press and the body is provided with a threaded hole, and the other is provided with a screw hole.
8. The tape hook measuring tape hooking device of claim 1 wherein the body is further configured with a handle.
9. The hook and loop measuring tape device of claim 1 wherein the zero end has a height above and below the zero end that is greater than the height of the hook for mating therewith.
10. Measuring tape comprising a tape hook, characterized in that the tape hook is hooked to the tape hook measuring tape hooking device as defined in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322376101.6U CN220772075U (en) | 2023-09-01 | 2023-09-01 | Measuring tape hooking device with tape hook and measuring tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322376101.6U CN220772075U (en) | 2023-09-01 | 2023-09-01 | Measuring tape hooking device with tape hook and measuring tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220772075U true CN220772075U (en) | 2024-04-12 |
Family
ID=90620801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322376101.6U Active CN220772075U (en) | 2023-09-01 | 2023-09-01 | Measuring tape hooking device with tape hook and measuring tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220772075U (en) |
-
2023
- 2023-09-01 CN CN202322376101.6U patent/CN220772075U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220772075U (en) | Measuring tape hooking device with tape hook and measuring tape | |
| CN210036535U (en) | Engine connecting rod height gauge | |
| CN209588879U (en) | A kind of vernier caliper convenient for measuring major diameter steel | |
| CN201417130Y (en) | Measuring tool for measuring chamfer angle | |
| CN208520287U (en) | The vernier that turbocharger middle body mesoporous internal jump ring groove location can be measured hooks ruler | |
| CN220772074U (en) | Non-ruler hook measuring ruler clamping device and measuring ruler | |
| CN214747700U (en) | Multifunctional clearance surface difference measuring scale | |
| CN201444034U (en) | Tool for measuring unevenness of steel plate | |
| CN211291236U (en) | Pipe crossbeam inclination cutting and chipless hot melting tapping gauge | |
| CN214250813U (en) | Floor thickness control device | |
| CN220972084U (en) | Holding tool for holding measuring ruler | |
| CN218270434U (en) | Novel stainless steel vernier caliper | |
| CN213067363U (en) | Auxiliary tool for measuring length of red hot casting blank on line | |
| CN211317095U (en) | Steel tape | |
| CN214843141U (en) | Tester capable of automatically analyzing residual deformation of reinforcing steel bar | |
| CN215725618U (en) | Tool for measuring different plane spacing | |
| CN208398740U (en) | Slide calliper rule with movable measuring jaw | |
| CN216245918U (en) | Multifunctional measuring device | |
| CN215114336U (en) | A thickness detection device for fire prevention glass production | |
| CN221571727U (en) | Fastener clamping force detection device | |
| CN213067404U (en) | Portable mould accessory detection device | |
| CN217179459U (en) | Tool for measuring steel plate | |
| CN216115690U (en) | Concrete spraying thickness measuring scale | |
| CN209541591U (en) | A kind of steel tape zero-point positioning device | |
| CN217738081U (en) | U-shaped bolt checking fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |