CN211684354U

CN211684354U - Nail-free connecting blackboard frame and blackboard

Info

Publication number: CN211684354U
Application number: CN202020032940.XU
Authority: CN
Inventors: 周倜; 梁玉夏; 周晓梅; 周子尧
Original assignee: Guangdong Xiazhijie Stationery Co Ltd
Current assignee: Guangdong Xiazhijie Stationery Co Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-10-16
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses an exempt from blackboard frame that nail is connected, and disclose the blackboard of blackboard frame that has exempt from nail to connect, wherein exempt from blackboard frame that nail is connected includes a plurality of frame strips and a plurality of corner spare, the tip of frame strip is equipped with the connecting hole, be equipped with the kayser in the connecting hole, the jack catch protrusion in the connecting hole of kayser, be equipped with the mounting hole of perpendicular to connecting hole on the frame strip, the eccentric wheel of kayser passes the mounting hole, be equipped with two joint grooves that extend along the fore-and-aft direction in the corner spare, two joint inslots are located to the jack catch one-to-one of two kaysers, all be equipped with the card strip on two open-ended lateral walls in joint groove, jack catch. The three-lock is arranged in the side frame strip, the clamping jaws of the three-lock extend into the clamping groove, the clamping jaws can be opened by rotating the eccentric wheel of the three-lock, the clamping strip positioned at the opening of the clamping groove is pressed, the side frame strip and the corner piece can be spliced, and screws are not needed in the splicing process.

Description

Nail-free connecting blackboard frame and blackboard

Technical Field

The utility model relates to an educational outfit technical field, in particular to blackboard frame and blackboard of nail connection exempt from.

Background

The existing blackboard frame is formed by splicing frame strips, the frame strips are fixedly connected through screws, and screw heads are exposed outside the frame after splicing, so that the attractiveness is affected; in addition, the lock screw needs to drill holes on the side frame strips, and for blackboards which are delivered from factories after being assembled, a drilling process needs to be set in the factories, so that the labor and equipment cost are increased, and the production efficiency is low; for blackboards assembled on site, due to different levels of field installers, holes are drilled in a factory and then the blackboards are not necessarily assembled in a matching manner on site, and the installation is usually carried out by the field installers by drilling the holes on site, so that the field installers have more installation procedures and low installation efficiency. Those skilled in the art would like to have a blackboard border that can be assembled without the use of screws.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a exempt from blackboard frame that nail is connected can not need to use the screw to accomplish the concatenation.

The utility model also provides a blackboard of blackboard frame that has above-mentioned nail-free to connect.

The blackboard frame without nail connection according to the embodiment of the first aspect of the utility model comprises a plurality of side frame strips and a plurality of corner pieces, wherein the side frame strips and the corner pieces are alternately and sequentially connected to form a side frame body perpendicular to the front and back direction, the end part of the side frame strip is provided with a connecting hole arranged along the extending direction of the side frame strip, a three-lock is arranged in the connecting hole, the clamping jaws of the three-lock protrude out of the connecting hole, the opening and closing direction of the clamping jaws of the three-lock is perpendicular to the front and back direction, the side frame strip is provided with a mounting hole perpendicular to the connecting hole, the eccentric wheel of the three-lock passes through the mounting hole, two clamping grooves extending along the front and back direction are arranged in the corner piece, the openings of the two clamping grooves face towards the clamping jaws of the two three-lock respectively, and the clamping jaws of the two three-lock are arranged in the two, all be equipped with the card strip on two lateral walls of the open-ended of joint groove, the jack catch with card strip joint.

According to the utility model discloses nail connection's blackboard frame exempts from has following beneficial effect at least: set up the three kaysers in the frame strip, stretch into the joint inslot to the jack catch of three kaysers, rotate the eccentric wheel of three kaysers and can make the jack catch open, compress tightly the open-ended card strip that is located the joint groove, can accomplish the concatenation of frame strip and corner piece, splice in proper order frame strip and corner piece and can splice into the frame body, the concatenation process need not use the screw.

According to some embodiments of the utility model, the inboard of connecting hole is equipped with the edge the spacing groove that the extending direction of connecting hole set up, three blocks of locks are located the spacing inslot.

According to some embodiments of the invention, the mounting hole faces the inside of the rim body.

According to the utility model discloses a some embodiments, the front side fixedly connected with apron of corner fittings, the apron covers the leading flank of corner fittings, the rear side of apron is equipped with the inserted block, the front side of corner fittings is equipped with the jack, the inserted block peg graft in with interference fit in the jack.

According to some embodiments of the invention, the frame body is rectangular.

According to the utility model discloses a some embodiments locate the frame strip of the upside and the downside of frame body all is equipped with the guide rail that extends along left right direction, be equipped with the orientation on the guide rail the inboard guide slot of frame body, the guide rail is located the front side of mounting hole.

According to some embodiments of the utility model, be equipped with in the guide rail can dismantle ground fixed connection in the removable section of frame strip.

According to the utility model discloses a some embodiments, be equipped with the constant head tank on the frame strip, be equipped with location portion on the detachable section, location portion peg graft in the constant head tank.

According to the utility model discloses a blackboard of second aspect embodiment, include according to the utility model discloses the blackboard frame of nail-free connection of the aforesaid first aspect embodiment.

According to the utility model discloses blackboard has following beneficial effect at least: by adopting the nail-free blackboard frame, screws are not needed in the splicing blackboard frame, and the production or installation efficiency is improved.

The utility model is used for the blackboard.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic perspective view of a rear side of a side frame strip and a corner piece according to an embodiment of the present invention;

fig. 2 is a front-back view of the side frame strip and the corner member according to the embodiment of the present invention;

fig. 3 is a schematic perspective view of the front side of the embodiment of the present invention, in which the side frame strip is connected to the corner piece;

fig. 4 is a schematic perspective view of the three-clip lock of the embodiment of the present invention installed in the side frame strip;

fig. 5 is a perspective view of a blackboard according to an embodiment of the present invention.

In the drawings: 101-frame strip, 102-corner piece, 103-connecting hole, 104-three-card lock, 105-claw, 106-eccentric wheel, 107-clamping groove, 108-clamping strip, 109-limiting groove, 110-cover plate, 111-jack, 112-guide rail, 113-guide groove and 114-positioning groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, unless otherwise explicitly defined, words such as set forth, connected, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the words in the present invention by combining the specific contents of the technical solutions.

A nail-free connected blackboard frame according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 5.

The blackboard frame without nail connection comprises a plurality of side frame strips 101 and a plurality of corner pieces 102, the side frame strips 101 and the corner pieces 102 are alternately and sequentially connected to form a frame body perpendicular to the front-back direction, the end part of the side frame strip 101 is provided with a connecting hole 103 arranged along the extending direction of the side frame strip 101, a three-lock 104 is arranged in the connecting hole 103, a claw 105 of the three-lock 104 protrudes out of the connecting hole 103, the opening and closing direction of the claw 105 of the three-lock 104 is perpendicular to the front-back direction, the side frame strip 101 is provided with a mounting hole perpendicular to the connecting hole 103, an eccentric wheel 106 of the three-lock 104 penetrates through the mounting hole, two clamping grooves 107 extending along the front-back direction are arranged in the corner piece 102, the openings of the two clamping grooves 107 respectively face the claws 105 of the two three-lock 104, the claws 105 of the two three-lock 104 are arranged in the two clamping grooves 107 in one-to-one correspondence, two side, pawl 105 engages with strip 108.

A three-lock 104 is arranged in the side frame strip 101, a jaw 105 and an eccentric wheel 106 for controlling the jaw 105 to open and close are arranged in the three-lock 104, the jaw 105 can be opened or closed by the forward rotation eccentric wheel 106 or the reverse rotation eccentric wheel 106, and the eccentric wheel 106 penetrates through a mounting hole in the side frame strip 101. The jaws 105 of the folded three-card lock 104 extend into the clamping grooves 107, the corner piece 102 abuts against the end portion of the side frame strip 101, the eccentric wheel 106 of the three-card lock 104 is rotated to open the jaws 105, the clamping strips 108 located at the opening of the clamping grooves 107 are pressed tightly, splicing of the side frame strip 101 and the corner piece 102 can be completed, the side frame strip 101 and the corner piece 102 are sequentially spliced to form an edge frame body, screws are not needed in the splicing process, screw holes do not need to be drilled in the side frame strip 101, installation is convenient, connecting screws do not exist on the blackboard frame, and attractiveness is improved.

In some embodiments of the present invention, the inner side of the connecting hole 103 is provided with a limiting groove 109 along the extending direction of the connecting hole 103, and the three-lock latch 104 is disposed in the limiting groove 109. The three-card lock 104 is placed in the limiting groove 109, and the limiting groove 109 limits the three-card lock 104. The eccentric wheel 106 is pressed down, the three-card lock 104 extends into the connecting hole 103 along the limiting groove 109, the eccentric wheel 106 can automatically bounce into the mounting hole after reaching the position of the mounting hole, and the limiting groove 109 prevents the three-card lock 104 from swinging and is convenient to butt with the corner piece 102.

In some embodiments of the invention, the mounting hole faces the inside of the frame body. The eccentric wheel 106 faces the inner side of the frame body and is not exposed outside the blackboard frame, thereby improving the appearance.

In some embodiments of the present invention, a cover plate 110 is fixedly connected to the front side of the corner member 102, the cover plate 110 covers the front side surface of the corner member 102, an insertion block is disposed on the rear side of the cover plate 110, a insertion hole 111 is disposed on the front side of the corner member 102, and the insertion block is inserted into the insertion hole 111 in an interference fit manner. The cover plate 110 covers the front side of the corner piece 102, and can cover the clamping groove 107, so that the appearance is improved. The insert block is connected with the insertion hole 111 in an interference fit mode, and after the insert block is inserted into the insertion hole 111, the cover plate 110 is fixed with the corner piece 102, so that the installation is convenient.

In some embodiments of the invention, the frame body is rectangular.

In some embodiments of the present invention, the frame strips 101 disposed on the upper side and the lower side of the frame body are provided with guide rails 112 extending in the left-right direction, the guide rails 112 are provided with guide grooves 113 facing the inner side of the frame body, and the guide rails 112 are disposed on the front side of the mounting holes. The guide groove 113 can be connected with a movable plate, the movable plate can move left and right along the guide groove 113, a writing board can be switched conveniently, or for some blackboards with display screens, the movable plate can be used for shielding the display screens, and when the display screens are needed, the movable plate is opened, so that the display screens can be used conveniently. The guide rail 112 is arranged at the front side of the mounting hole, and the guide rail 112 does not block the mounting hole and does not interfere with the adjustment eccentric wheel 106.

In some embodiments of the present invention, the guide rail 112 is provided with a detachable section that is detachably and fixedly connected to the frame strip 101. At present, when the movable plate is installed or replaced, the movable plate can be taken out from the end part of the guide rail 112 only by detaching the left frame or the right frame of the frame, the detachment or installation of the left frame or the right frame is troublesome, and the work efficiency of detaching and installing the movable plate is low. In the technology, the detachable section in the guide rail 112 can be detached from the frame strip 101, the guide rail 112 forms a gap, the movable plate can slide to the gap and be taken out along the front-back direction, the movable plate can be taken out from the end part of the guide rail 112 without detaching the left frame or the right frame of the blackboard frame, the step of detaching the movable plate can be simplified when the left frame or the right frame is prevented from being detached, and the work efficiency of detaching the movable plate is improved. The removable section can be mounted on the frame strip 101 with screws.

In some embodiments of the present invention, the frame strip 101 is provided with a positioning groove 114, the detachable section is provided with a positioning portion, and the positioning portion is inserted into the positioning groove 114. When setting up like this and making removable section of dismouting at every turn, all make removable section keep with the location of frame strip 101, install the location after conveniently tearing down.

According to the utility model discloses blackboard of second aspect embodiment, include according to the utility model discloses the blackboard frame of nail-free connection of above-mentioned first aspect embodiment.

According to the utility model discloses blackboard, through adopting foretell nail-free connection's blackboard frame, can need not use the screw at concatenation blackboard frame, improves production or installation effectiveness.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various equivalent modifications or substitutions can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. A nail-free connecting blackboard frame is characterized by comprising a plurality of side frame strips and a plurality of corner pieces, wherein the side frame strips and the corner pieces are alternately and sequentially connected to form a side frame body perpendicular to the front-back direction, a connecting hole arranged along the extending direction of the side frame strips is formed in the end portion of each side frame strip, a three-lock is arranged in the connecting hole, clamping jaws of the three-lock protrude out of the connecting hole, the opening and closing direction of the clamping jaws of the three-lock is perpendicular to the front-back direction, mounting holes perpendicular to the connecting holes are formed in the side frame strips, eccentric wheels of the three-lock penetrate through the mounting holes, two clamping grooves extending along the front-back direction are formed in the corner pieces, the openings of the two clamping grooves face towards the clamping jaws of the two three-lock respectively, and the clamping jaws of the two three-lock are arranged in the two clamping grooves in a one-to, all be equipped with the card strip on two lateral walls of the open-ended of joint groove, the jack catch with card strip joint.

2. The nail-free blackboard frame according to claim 1, wherein the inner side of the connection hole is provided with a limit groove along the extending direction of the connection hole, and the three clips are locked in the limit groove.

3. The nailless blackboard frame of claim 1, wherein the mounting hole is toward the inside of the bezel body.

4. The nail-free blackboard frame according to claim 1, wherein a cover plate is fixedly connected to the front side of the corner piece, the cover plate covers the front side of the corner piece, an insertion block is arranged on the rear side of the cover plate, a jack is arranged on the front side of the corner piece, and the insertion block is inserted into the jack in an interference fit manner.

5. The nailless blackboard bezel of claim 1, wherein the bezel body is rectangular.

6. The nail-free blackboard frame according to claim 5, wherein the frame strips disposed at the upper and lower sides of the frame body are provided with guide rails extending in the left-right direction, the guide rails are provided with guide grooves facing the inner side of the frame body, and the guide rails are disposed at the front side of the mounting holes.

7. The nail-free blackboard frame of claim 6, wherein the guide rail is provided with a detachable section which is detachably and fixedly connected to the frame strip.

8. The nail-free blackboard frame of claim 7, wherein the frame strip has a positioning groove, the detachable section has a positioning portion, and the positioning portion is inserted into the positioning groove.

9. A blackboard comprising a nailless blackboard bezel according to any one of claims 1 to 8.