CN211417268U - Car stopping roller device for coal mine tunnel - Google Patents
Car stopping roller device for coal mine tunnel Download PDFInfo
- Publication number
- CN211417268U CN211417268U CN201921991514.2U CN201921991514U CN211417268U CN 211417268 U CN211417268 U CN 211417268U CN 201921991514 U CN201921991514 U CN 201921991514U CN 211417268 U CN211417268 U CN 211417268U
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- seat
- coal mine
- thick bamboo
- adjusting screw
- upright post
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Abstract
The utility model provides a car roller device that keeps off for coal mine tunnel, include a seat section of thick bamboo (2) of setting on coal mine tunnel, the setting is in a seat section of thick bamboo (2) and be used for blockking stand (1) that the vehicle passes, the setting is between stand (1) and a seat section of thick bamboo (2) and be used for peg (3) fixed stand (1) and a seat section of thick bamboo (2), through a seat section of thick bamboo (2) and stand (1), it forms flexible post to have realized on coal mine tunnel, through peg (3), the control that a seat section of thick bamboo (2) and stand (1) are in flexible state has been realized, consequently no longer make stand (1) separate with a seat section of thick bamboo (2) under the shrink state, transportation safety performance has been improved.
Description
Technical Field
The utility model relates to a stop roller device, especially a stop roller device for coal mine tunnel.
Background
In the coal mine tunnel, block current to the rail transport vechicle through the roller of keeping off the car, the roller of keeping off the car is one of the indispensable safety device of transportation safety, consequently, the roller of keeping off the car device that is used for the coal mine tunnel is an important mining device, in the roller of keeping off the car device that is used for the coal mine tunnel that has now, the roller of keeping off the car adopts the rod nest and the cooperation of the roller of keeping off the car, extract before passing the car, insert after passing the car, owing to do not have stop device, can extract, very easily cause the roller of keeping off the car to damage and lose, cause very big latent for transportation safety.
The technical scheme of the invention is made based on the technical problems, technical features and technical effects in the technical background of the applicant.
Disclosure of Invention
The object of the utility model is a stop roller device for coal mine tunnel.
In order to overcome the technical defect, the utility model aims at providing a stop roller device for coal mine tunnel, consequently no longer make the stand separate with a seat section of thick bamboo under the contraction state, improved transportation security performance.
In order to achieve the purpose, the utility model adopts the technical proposal that: the device comprises a seat barrel arranged on a coal mine roadway, an upright post arranged in the seat barrel and used for blocking the vehicle from passing, and a hanging rod arranged between the upright post and the seat barrel and used for fixing the upright post and the seat barrel.
Due to the design of the seat barrel, the stand column and the hanging rod, the telescopic column is formed on the coal mine roadway, the seat barrel and the stand column are controlled to be in a telescopic state through the hanging rod, the stand column is not separated from the seat barrel in a telescopic state, and the transportation safety performance is improved.
The utility model discloses a, according to the mode that keeps the part wholeness when being in the extending state to a seat section of thick bamboo, stand and peg hookup each other.
The utility model relates to a, according to the mode that is in the extension state when connecing through holding in the palm the peg and a seat section of thick bamboo and stand hookup.
The utility model discloses a, still include first annex device and first annex device sets up on a seat section of thick bamboo, and first annex device sets up to adjusting screw.
The utility model discloses a, still include second annex device and second annex device sets up between stand and first annex device, and second annex device sets up to the blotter.
The utility model discloses a, a seat section of thick bamboo sets up in the tunnel ground, is provided with peg and cushion respectively between stand and a seat section of thick bamboo and the blotter setting is on adjusting screw, and adjusting screw sets up on a seat section of thick bamboo.
The utility model discloses a, be provided with the plug-in hole body and the middle side portion of post portion sets up to hookup with the peg in the upper end side portion of the post portion of stand, and the post portion sets up to the formula of sinking hookup with a seat section of thick bamboo and the post portion sets up to the circular roll shape body, and the plug-in hole body sets up to the flat hole body and the plug-in hole body sets up to be upwards extending distribution with the post portion.
The utility model discloses a, be provided with the sliding track body and be provided with the opening body in the upper end terminal surface portion of section of thick bamboo portion at the medial surface portion of the section of thick bamboo portion of a seat section of thick bamboo, the bottom terminal surface portion of section of thick bamboo portion sets up to hookup with adjusting screw thread formula and section of thick bamboo portion sets up to hookup with the stand formula of holding, the sliding track body sets up to hookup with the peg formula of holding and the opening body sets up to hookup with the peg formula of holding, section of thick bamboo portion sets up to the circular tubular body that has the blind hole and the sliding track body sets up to U font groove body, the opening body sets up to the U font notch.
The utility model relates to a, the peg sets up to circular rod-shaped body and the inner end of peg sets up to be linked to with the stand, and the peg sets up to be linked to with a seat section of thick bamboo.
The utility model discloses a, adjusting screw sets up to hex bolts and adjusting screw sets up to hookup with a seat section of thick bamboo screw thread formula, adjusting screw's upper end terminal surface portion sets up to hookup with the blotter.
The utility model discloses a, the blotter sets up to the rubber block body and the lower extreme terminal surface portion of blotter sets up to hookup with adjusting screw, the upper end terminal surface portion of blotter set up to hookup with stand contact.
The utility model discloses a, a seat section of thick bamboo and stand and peg set up to distribute according to supporting bellied mode and a seat section of thick bamboo, stand and peg and adjusting screw and cushion set up to distribute according to elastic support's mode, and the central line of stand, a seat section of thick bamboo, adjusting screw's central line and cushion set up on same straight line, and the column part sets up to hookup with section of thick bamboo portion.
The utility model discloses a, be provided with first vertical embedding respectively on the inside face portion of the section of thick bamboo portion of a seat section of thick bamboo and the vertical embedding of second says and is provided with the horizontal hole body that leaks between the upper end of the body is said to the last end of the body and the vertical embedding of second in first vertical embedding, first vertical embedding is said the body, the vertical embedding of second is said the body and is transversely leaked the hole body and set up to holding the formula hookup and first vertical embedding is said the body and the vertical embedding of second is said the body and set up to the U-shaped groove body, the lower end of the vertical embedding of second is said the body and the lower end of the vertical embedding is said the body sets up to being range distribution from top to bottom and horizontal leaking hole body sets up to rectangular hole body.
The technical effects of the utility model reside in that: manufacturing a rod nest with the length of 800mm by adopting a steel pipe with the diameter of 110mm and the thickness of 5mm, manufacturing a semicircular notch with the width of 20mm at the position 15mm below the top end of the steel pipe of the rod nest, manufacturing a notch with the width of 40mm and the length of 560mm on one side of the steel pipe, and welding a steel plate with the thickness of 2mm to manufacture a slide way; the car stopping stick is made of a steel pipe with the diameter of 90mm, the thickness of 5mm and the length of 1010mm, a limiting transverse pin with the diameter of 18mm and the length of 40mm is welded at the position 550mm above the bottom end, no. 11H-shaped steel is welded and fixed on the rail fixing device at the top end of the stick nest, when a user passes through the vehicle, the user only needs to hold a handle of the vehicle-blocking stick by hand, slightly rotates leftwards for 45 degrees to loosen the hand, a sleeve at the upper part of the vehicle-blocking stick can slide into a sleeve at the bottom part, after the user passes through the vehicle, the vehicle-blocking stick is lifted up, slightly rotates rightwards for 45 degrees to loosen the hand, a limiting pin of the vehicle-blocking stick is clamped in the limiting, in the coal mine rail transportation, the device can be used in all places where the car stopping stick is adopted, is safe and reliable, is not easy to lose and damage, eliminates the potential safety hazard of transportation, because the car blocking stick and the stick nest adopt the locking combined action, the potential safety hazard that the car blocking stick is lost and damaged is avoided, the use is convenient, and 1 person can operate on site by using the device.
In this technical scheme, stand, a seat section of thick bamboo and peg are basic part, also the utility model discloses a necessary technical feature, adjusting screw and cushion are functional unit, realize the utility model discloses a characteristic of other technological effects, the column part, insert the hole body, a section of thick bamboo portion, the slip way body, the opening body, the first vertical embedding way body, the vertical embedding of second way body and the design of horizontal hourglass hole body these technical features are accord with the patent law and implement the technical feature of rule.
In the technical scheme, the seat barrel, the upright post and the hanging rod which keep the integrity of the components in the telescopic state are important technical characteristics, and have novelty, creativity and practicability in the technical field of the car stopping roller device for the coal mine tunnel, and the terms in the technical scheme can be explained and understood by the patent documents in the technical field.
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.
Figure 1 is a schematic view of one of the first embodiments of the present invention,
figure 2 is a schematic top view of figure 1,
figure 3 is a schematic view of a second embodiment of the present invention,
the device comprises a vertical column-1, a seat cylinder-2, a hanging rod-3, an adjusting screw-4, a cushion pad-5, a column part-11, an insertion hole body-12, a cylinder part-21, a sliding channel body-22, an opening body-23, a first vertical embedded channel body-24, a second vertical embedded channel body-25 and a transverse leakage hole body-26.
Detailed Description
Terms such as "having," "including," and "comprising," as used herein with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof.
The invention is further described below with reference to the following examples, which are intended to illustrate the invention but not to limit it further. The method comprises the following steps:
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and unless otherwise specified, the equipment and materials used in the following examples are commercially available, and if the processing conditions are not specified, please refer to the purchased product specification or follow the conventional method in the art.
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.
Fig. 1 is one of the first embodiment of the present invention, and the present embodiment is specifically explained with reference to the attached drawings, and includes a column 1, a seat barrel 2, a hanging rod 3, an adjusting screw rod 4 and a cushion pad 5, and the seat barrel 2 is disposed in the roadway foundation, the hanging rod 3 and the cushion pad 5 are respectively disposed between the column 1 and the seat barrel 2, and the cushion pad 5 is disposed on the adjusting screw rod 4, and the adjusting screw rod 4 is disposed on the seat barrel 2.
In the present embodiment, an insertion hole body 12 is provided on an upper end side surface portion of the column part 11 of the column 1 and an intermediate side surface portion of the column part 11 is provided to be coupled to the hanging rod 3, the column part 11 is provided to be coupled to the seat tube 2 in a recessed manner and the column part 11 is provided to be a circular roller body, the insertion hole body 12 is provided to be a flat hole body and the insertion hole body 12 is provided to be distributed to extend upward from the column part 11.
Through stand 1, formed the support tie point to a seat section of thick bamboo 2 and peg 3, by column portion 11, realized being connected with a seat section of thick bamboo 2, realized being connected with peg 3, by the plug-in hole body 12, realized the promotion and sink of column portion 11, its technical aim at: for blocking the vehicle.
In the present embodiment, the inner side surface of the cylinder part 21 of the seat tube 2 is provided with the sliding track body 22 and the upper end surface of the cylinder part 21 is provided with the opening body 23, the bottom end surface of the cylinder part 21 is provided to be screw-coupled with the adjusting screw 4 and the cylinder part 21 is provided to be accommodatively coupled with the upright post 1, the sliding track body 22 is provided to be accommodatively coupled with the hanging rod 3 and the opening body 23 is provided to be bracket-coupled with the hanging rod 3, the cylinder part 21 is provided to be a circular tubular body having a blind hole and the sliding track body 22 is provided to be a U-shaped groove body, the opening body 23 is provided to be a U-shaped recess body and the sliding track body 22 and the opening body 23.
Through a seat section of thick bamboo 2, formed the support tie point to stand 1, adjusting screw 4 and peg 3, by section of thick bamboo 21, realized being connected with stand 1, realized being connected with adjusting screw 4, by sliding way body 22 and opening body 23, realized being connected with peg 3, its technical aim at: used as a support carrier of the upright post 1, the adjusting screw rod 4 and the hanging rod 3.
In the present embodiment, the hanging rod 3 is provided as a circular rod-shaped body and the inner end of the hanging rod 3 is provided to be coupled with the column 1, and the hanging rod 3 is provided to be coupled with the seat tube 2.
Through peg 3, formed the support tie point to stand 1 and a seat section of thick bamboo 2, by peg 3, realized being connected with stand 1, realized being connected with a seat section of thick bamboo 2, its technical aim at: for serving as an intermediate member between the pillar 1 and the seat tube 2.
In the present embodiment, the adjustment screw 4 is provided as a hexagon bolt and the adjustment screw 4 is provided to be screw-coupled with the seat tube 2, and an upper end surface portion of the adjustment screw 4 is provided to be coupled with the cushion pad 5.
Through adjusting screw 4, formed the support tie point to cushion 5 and a seat section of thick bamboo 2, by adjusting screw 4, realized being connected with cushion 5, realized being connected with a seat section of thick bamboo 2, its technical aim at: for serving as a support carrier for the cushion 5.
In the present embodiment, the cushion pad 5 is provided as a rubber block-shaped body and the lower end surface portion of the cushion pad 5 is provided to be coupled with the adjusting screw 4, and the upper end surface portion of the cushion pad 5 is provided to be coupled in contact with the pillar 1.
Through blotter 5, formed the support tie point to stand 1 and adjusting screw 4, by blotter 5, realized being connected with stand 1, realized being connected with adjusting screw 4, its technical aim at: for cushioning the falling column 1.
In the present embodiment, the seat tube 2 and the upright post 1 and the hanging rod 3 are arranged to be distributed in a supporting convex manner and the seat tube 2, the upright post 1 and the hanging rod 3 and the adjusting screw 4 and the cushion 5 are arranged to be distributed in an elastically supporting manner, the center line of the upright post 1, the center line of the seat tube 2, the center line of the adjusting screw 4 and the center line of the cushion 5 are arranged on the same straight line, and the pillar portion 11 is arranged to be coupled with the tube portion 21.
When a coal mine tunnel passes, an operator puts a palm part into the insertion hole body 12, lifts the column part 11 to align the hanging rod 3 with the upper end port part of the sliding track body 22, the hanging rod 3 slides downwards in the sliding track body 22, the column part 11 slides downwards in the barrel part 21, the lower end head of the column part 11 is in contact with the buffer pad 5, so that the column part 11 and the barrel part 21 are in a contraction state, after passing, the operator puts the palm part into the insertion hole body 12, lifts the column part 11, installs the hanging rod 3 on the opening body 23, makes the column part 11 and the barrel part 21 in an extension state, adjusts the height of the buffer pad 5 through rotation of the adjusting screw rod 4 and the seat barrel 2, so as to adjust the height of the column part 11, and is convenient for the operator to put the palm part into the insertion hole body 12.
Fig. 3 is the second embodiment of the present invention, the first vertical embedded track 24 and the second vertical embedded track 25 are respectively disposed on the inner side of the cylinder 21 of the seat cylinder 2 and a horizontal through hole 26 is disposed between the upper end of the first vertical embedded track 24 and the upper end of the second vertical embedded track 25, the first vertical embedded track 24, the second vertical embedded track 25 and the horizontal through hole 26 are disposed to be connected with the hanging rod 3 in a holding manner, and the first vertical embedded track 24 and the second vertical embedded track 25 are disposed to be U-shaped groove-shaped bodies, the lower end of the second vertical embedded track 25 and the lower end of the first vertical embedded track 24 are disposed to be vertically arranged and distributed, and the horizontal through hole 26 is disposed to be a long hole-shaped body.
By the vertical embedded way body 24 of first vertical, the vertical embedded way body 25 of second and the horizontal hole body 26 that leaks, realized being connected with peg 3, its technical aim at: for non-detachable coupling of the column 1 with the seat tube 2.
When a coal mine tunnel passes through, the hanging rod 3 is placed on the lower end head of the first vertical embedded road body 24, so that the column part 11 and the cylinder part 21 are in a contraction state, and after the vehicle passes through, the column part 11 is lifted, so that the hanging rod 3 is placed on the lower end head of the second vertical embedded road body 25 through the transverse through hole body 26, and the column part 11 and the cylinder part 21 are in an extension state.
The second embodiment of the utility model, the seat tube 2, the upright post 1 and the hanging rod 3 are connected with each other in a way of keeping the integrity of the components when in the telescopic state.
In this embodiment, the hanging bar 3 is coupled to the seat tube 2 and the column 1 in such a manner as to be in an extended state by being hitched.
In the present embodiment, a first attachment device is also included and is arranged on the seat cylinder 2, the first attachment device being arranged as an adjusting screw 4.
In this embodiment, a second attachment means is also included and is arranged between the upright 1 and the first attachment means, the second attachment means being arranged as a cushion 5.
A second embodiment of the present invention is based on the first embodiment,
the utility model has the characteristics of down:
1. owing to designed a seat section of thick bamboo 2, stand 1 and peg 3, through a seat section of thick bamboo 2 and stand 1, realized forming flexible post on coal mine tunnel, through peg 3, realized a seat section of thick bamboo 2 and stand 1 and be in the control of flexible state, consequently no longer make stand 1 separate with a seat section of thick bamboo 2 under the contraction state, improved transportation security performance.
2. Due to the design of the adjusting screw 4, a height adjustment of the insertion hole body 12 is achieved.
3. The cushion pad 5 is designed to realize a cushioning process for the column portion 11.
4. The first vertical embedded road body 24, the second vertical embedded road body 25 and the transverse through-leakage hole body 26 are designed, so that the integrity of the column part 11 and the barrel part 21 is maintained.
5. Owing to designed the utility model discloses a technical characteristic, in technical characteristic's the effect alone and mutual set, through experimental demonstration, the utility model discloses an each item performance index is 1.7 times at least for current each item performance index, has fine market value through the aassessment.
Other technical features associated with the seat tube 2, the upright 1 and the hanging rod 3, which maintain the integrity of the components when they are in the telescopic state, are all one of the embodiments of the present invention, and the technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to meet the requirements of patent laws, patent practice rules and examination guidelines, all possible combinations of the technical features of the above-mentioned embodiments will not be described again.
Therefore in the roller device technical field of keeping off a car for coal mine tunnel, include all that include the seat section of thick bamboo 2 of setting on coal mine tunnel, set up in a seat section of thick bamboo 2 and be used for blockking the current stand 1 of vehicle, set up between stand 1 and a seat section of thick bamboo 2 and be used for all being in the technical content of the peg 3 fixed with a seat section of thick bamboo 1 the utility model discloses a protection within range.
Claims (10)
1. The utility model provides a stop roll device for coal mine tunnel, characterized by: comprises a seat barrel (2) arranged on a coal mine roadway, an upright post (1) arranged in the seat barrel (2) and used for blocking the vehicle from passing, and a hanging rod (3) arranged between the upright post (1) and the seat barrel (2) and used for fixing the upright post (1) and the seat barrel (2).
2. The car stopping roller device for the coal mine tunnel according to claim 1, which is characterized in that: the seat cylinder (2), the upright post (1) and the hanging rod (3) are connected with each other in a manner of keeping the integrity of the components in a telescopic state.
3. The car stopping roller device for the coal mine tunnel according to claim 2, which is characterized in that: the hanging rod (3) is connected with the seat cylinder (2) and the upright post (1) in a mode of being in an extension state during supporting.
4. The car stopping roller device for the coal mine tunnel according to claim 1, which is characterized in that: also comprises a first accessory device which is arranged on the seat cylinder (2) and is arranged as an adjusting screw rod (4),
or, a second attachment device is also included and arranged between the upright (1) and the first attachment device, the second attachment device being arranged as a cushion (5).
5. The car stopping roller device for the coal mine tunnel according to claim 4, which is characterized in that: a seat section of thick bamboo (2) set up in the tunnel ground, are provided with peg (3) and cushion (5) set up on adjusting screw (4) respectively between stand (1) and a seat section of thick bamboo (2), and adjusting screw (4) set up on a seat section of thick bamboo (2).
6. The car stopping roller device for the coal mine tunnel according to claim 5, which is characterized in that: an insertion hole body (12) is arranged on the upper end side face of a column part (11) of the upright post (1), the middle side face of the column part (11) is connected with the hanging rod (3), the column part (11) is connected with the seat barrel (2) in a sinking mode, the column part (11) is a circular roller body, the insertion hole body (12) is a flat hole body, and the insertion hole body (12) is arranged to be distributed in an upward extending mode with the column part (11).
7. The car stopping roller device for the coal mine tunnel according to claim 5, which is characterized in that: a sliding track body (22) is arranged on the inner side surface part of a cylinder part (21) of the seat cylinder (2), an opening body (23) is arranged on the upper end surface part of the cylinder part (21), the bottom end surface part of the cylinder part (21) is in threaded connection with the adjusting screw (4), the cylinder part (21) is in accommodating connection with the upright post (1), the sliding track body (22) is in accommodating connection with the hanging rod (3), the opening body (23) is in supporting connection with the hanging rod (3), the cylinder part (21) is a round tubular body with a blind hole, the sliding track body (22) is a U-shaped groove body, the opening body (23) is a U-shaped notch body, and the sliding track body (22) and the opening body (23) are arranged and distributed in an acute angle,
or, be provided with first vertical embedding way body (24) and the vertical embedding way body of second (25) respectively on the inside face of section of thick bamboo portion (21) of a seat section of thick bamboo (2) and be provided with horizontal perspective leak hole body (26) between the last end of first vertical embedding way body (24) and the upper end of the vertical embedding way body of second (25), first vertical embedding way body (24), the vertical embedding way body of second (25) and horizontal perspective leak hole body (26) set up to hold the formula hookup with peg (3) and first vertical embedding way body (24) and the vertical embedding way body of second (25) set up to U word shape groove form body, the lower extreme head of the vertical embedding way body of second (25) and the lower extreme head of the vertical embedding way body of first (24) set up to be the vertical range distribution and horizontal perspective leak hole body (26) set up to rectangular hole form body about being.
8. The car stopping roller device for the coal mine tunnel according to claim 5, which is characterized in that: the hanging rod (3) is a round rod-shaped body, the inner end of the hanging rod (3) is connected with the upright post (1), and the hanging rod (3) is connected with the seat barrel (2).
9. The car stopping roller device for the coal mine tunnel according to claim 5, which is characterized in that: the adjusting screw rod (4) is set to be a hexagon bolt, the adjusting screw rod (4) is set to be in threaded connection with the seat cylinder (2), the end surface part of the upper end of the adjusting screw rod (4) is set to be connected with the cushion pad (5),
or the buffer cushion (5) is a rubber block body, the lower end surface part of the buffer cushion (5) is connected with the adjusting screw rod (4), and the upper end surface part of the buffer cushion (5) is connected with the upright post (1) in a contact way.
10. A catcher roller device as claimed in any one of claims 1 to 9 for a coal mine tunnel wherein: the seat barrel (2), the upright post (1) and the hanging rod (3) are distributed in a supporting convex mode, the seat barrel (2), the upright post (1), the hanging rod (3), the adjusting screw rod (4) and the buffer pad (5) are distributed in an elastic supporting mode, the central line of the upright post (1), the central line of the seat barrel (2), the central line of the adjusting screw rod (4) and the central line of the buffer pad (5) are arranged on the same straight line, and the column portion (11) is connected with the barrel portion (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921991514.2U CN211417268U (en) | 2019-11-18 | 2019-11-18 | Car stopping roller device for coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921991514.2U CN211417268U (en) | 2019-11-18 | 2019-11-18 | Car stopping roller device for coal mine tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211417268U true CN211417268U (en) | 2020-09-04 |
Family
ID=72252114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921991514.2U Expired - Fee Related CN211417268U (en) | 2019-11-18 | 2019-11-18 | Car stopping roller device for coal mine tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211417268U (en) |
-
2019
- 2019-11-18 CN CN201921991514.2U patent/CN211417268U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200904 Termination date: 20211118 |