CN115337589A - Horizontal bar on door - Google Patents
Horizontal bar on door Download PDFInfo
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- CN115337589A CN115337589A CN202210825263.0A CN202210825263A CN115337589A CN 115337589 A CN115337589 A CN 115337589A CN 202210825263 A CN202210825263 A CN 202210825263A CN 115337589 A CN115337589 A CN 115337589A
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- lead screw
- pipe
- telescopic pipe
- sleeve
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B1/00—Horizontal bars
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- Physical Education & Sports Medicine (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a horizontal bar on a door, which comprises a bar body, a first supporting leg and a second supporting leg, wherein the bar body comprises a handle pipe and a sleeve pipe which is arranged in the handle pipe and synchronously rotates along with the handle pipe, and two ends of the sleeve pipe are respectively connected with a first transmission nut and a second transmission nut; the first lead screw is in threaded connection with the first transmission nut, and the second lead screw is in threaded connection with the second transmission nut; the synchronous pipe is arranged in the sleeve and sleeved on the first lead screw and the second lead screw, the synchronous pipe can circumferentially rotate relative to the sleeve, and the synchronous pipe is circumferentially limited relative to the first lead screw and the second lead screw; the handle comprises a left telescopic pipe and a right telescopic pipe, wherein the left telescopic pipe is in clearance fit in the handle pipe, the inner end of the left telescopic pipe is connected with the outer end of the first lead screw, the right telescopic pipe is in clearance fit in the handle pipe, and the inner end of the right telescopic pipe is connected with the outer end of the second lead screw. The horizontal bar on the door is short in installation time, high in installation speed and good in user experience.
Description
Technical Field
The invention relates to the technical field of fitness equipment, in particular to a horizontal bar on a door.
Background
Horizontal bar on the door is a common indoor body-building apparatus, mainly used installs and carries out chin upward movement on the door frame, because its volume is less, and it is fixed to facilitate the installation, receives liking of many body-building enthusiasts. Its structure of horizontal bar on door of prior art includes the horizontal bar body and connects the supporting legs at horizontal bar body both ends, the horizontal bar body includes left and right flexible pipe, handle pipe and both sides have the lead screw of positive and negative screw thread, the one end and lead screw one side threaded connection of the flexible pipe in a left side, the other end and the left branch foot of the flexible pipe in a left side are connected, the one end and the lead screw opposite side threaded connection of the flexible pipe in the right side, the other end and the right branch foot of the flexible pipe in the right side are connected, handle pipe drives the lead screw when rotating and rotates, the flexible pipe in a left side and the flexible pipe in the right side can outwards expand until making two supporting legs and two inside walls of door frame compress tightly. When a user does pull-up movement from top to bottom, in order to prevent the handle pipe from reversing under the action of torque force to enable the left and right telescopic pipes to contract, and lead to the fact that a horizontal bar on a door falls off, people install a locking mechanism between the handle pipe and the telescopic pipes on the horizontal bar, the locking mechanism mostly uses a latch to clamp and connect the handle pipe and the telescopic pipes, and the latch is separated from the clamp to enable the handle pipe and the telescopic pipes to be unlocked.
The horizontal bar on the door in the prior art has the following defects in the actual use process: the two sides of the screw rod are respectively in threaded connection with the left telescopic pipe and the right telescopic pipe, when the screw rod is rotated to drive the horizontal bar body to unfold, friction force exists due to the threaded connection between the screw rod and the left telescopic pipe and the right telescopic pipe, and the left telescopic pipe and the right telescopic pipe can rotate together with the screw rod under the action of the friction force, so that the horizontal bar body cannot be unfolded; therefore, the left telescopic tube and the right telescopic tube can be unfolded only by rotating the screw rod on the basis of limiting the circumferential rotation of the left telescopic tube and the right telescopic tube. When a horizontal bar on a door in the prior art is installed, the expansion of the left telescopic pipe and the right telescopic pipe is often required to be operated separately, namely, one hand grips the left telescopic pipe or the left support leg, and the other hand rotates the handle pipe to expand the left telescopic pipe; then one hand grips the right telescopic tube or the right support leg, and the other hand rotates the handle tube to expand the right telescopic tube. Therefore, when the left telescopic pipe and the right telescopic pipe are expanded or contracted, the operation is troublesome, the installation time of a horizontal bar on the door is long, the speed is slow, and the user experience is poor. Moreover, because there is the fit clearance between locking mechanism's latch and the lock tooth, in addition left and right stabilizer blade is worn and torn or ageing easily, like this on the door after the horizontal bar uses for a long time, is connected insecure with the doorframe very easily, drops even, and the security is relatively poor.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the horizontal bar on the door, which has the advantages of short installation time, high installation speed and good user experience.
The technical scheme of the invention is to provide a horizontal bar on a door, which has the following structure: it includes bar body, first arm brace and second arm brace, the bar body include
The handle comprises a handle pipe and a sleeve which is arranged in the handle pipe and synchronously rotates along with the handle pipe, wherein two ends of the sleeve are respectively connected with a first transmission nut and a second transmission nut;
two lead screws with opposite thread directions: the first lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the first transmission nut, and is arranged at the outer end of the first lead screw outside the sleeve; the second lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the second transmission nut, and is arranged at the outer end of the sleeve;
the synchronous pipe is arranged in the sleeve and sleeved on the first lead screw and the second lead screw, the synchronous pipe can circumferentially rotate relative to the sleeve, and the synchronous pipe is circumferentially limited relative to the first lead screw and the second lead screw;
the left telescopic pipe is in clearance fit in the handle pipe, the inner end of the left telescopic pipe is connected with the outer end of the first lead screw, and the outer end of the left telescopic pipe is connected with the first supporting leg;
and the right telescopic pipe is in clearance fit with the inside of the handle pipe, the inner end of the right telescopic pipe is connected with the outer end of the second lead screw, and the outer end of the right telescopic pipe is connected with the second supporting foot.
Preferably, the synchronizing tube is a square tube with a square central hole, the inner ends of the first lead screw and the second lead screw are both connected with a column head, and the cross section of the column head is matched with that of the central hole of the synchronizing tube, so that the inner ends of the first lead screw and the second lead screw can slide in the central hole of the synchronizing tube along the axial direction.
Preferably, the inner end of the left telescopic pipe is provided with a long hole extending along the axial direction of the left telescopic pipe, a first connecting piece is in clearance fit in the long hole, and the first connecting piece is connected with the outer end of the first lead screw; the left telescopic pipe is internally provided with an elastic part, one end of the elastic part is connected with the inner wall of the left telescopic pipe, the other end of the elastic part is connected with the outer end of the first lead screw, and the elastic part is used for applying axial outward pressure to the left telescopic pipe so that the left telescopic pipe always has an outward movement trend.
Preferably, the inner end of the right telescopic pipe is provided with a mounting hole, a second connecting piece is connected in the mounting hole, and the second connecting piece is connected with the outer end of a second lead screw.
Preferably, a first retainer is connected in an inner end inner hole of the left telescopic pipe, and the inner wall of a central hole of the first retainer is in clearance fit with the outer side wall of the first lead screw; and a second retainer is connected in an inner end inner hole of the right telescopic pipe, and the inner wall of a central hole of the second retainer is in clearance fit with the outer side wall of the second lead screw.
Preferably, the first holder is a first holding nut, the second holder is a second holding nut, the first holding nut is screwed to the first lead screw, and the second holding nut is screwed to the second lead screw.
Preferably, the handrail tube is connected with a base, and the base is connected with a level gauge.
As preferred, the both ends of handrail pipe all are connected with locking mechanism, locking mechanism include along the slip of left telescopic tube or the spacing lock circle of right telescopic tube length direction and circumference and connect at handrail pipe tip and with the synchronous pivoted lock seat of handrail pipe, be equipped with the latch on the inner wall of lock circle, be equipped with the lock tooth that can supply the latch joint on the lateral wall that the lock seat is close to lock circle one end.
After the structure is adopted, compared with the prior art, the horizontal bar on the door has the following advantages: a left telescopic pipe of a horizontal bar on the door is connected with a first lead screw, and a right telescopic pipe is connected with a second lead screw, so that the left telescopic pipe and the first lead screw move synchronously, and the right telescopic pipe and the second lead screw move synchronously; a synchronous pipe is arranged in a sleeve on the horizontal bar on the door, the synchronous pipe is sleeved on a first lead screw and a second lead screw, the synchronous pipe can circumferentially rotate relative to the sleeve, and the synchronous pipe is circumferentially limited relative to the first lead screw and the second lead screw; therefore, when the left telescopic pipe or the right telescopic pipe is gripped, the circumferential rotation of the left telescopic pipe, the right telescopic pipe, the first lead screw and the second lead screw is limited; at the moment, the handle pipe is rotated to enable the first transmission nut and the second transmission nut to respectively rotate along the circumferential directions of the first lead screw and the second lead screw, so that the first lead screw and the second lead screw can be simultaneously unfolded or simultaneously contracted along the axial direction of the synchronous pipe; therefore, when the horizontal bar on the door is installed, only one hand is needed to hold the left telescopic pipe or the right telescopic pipe tightly, and the other hand is needed to rotate the handle pipe, so that the left telescopic pipe or the right telescopic pipe can be synchronously unfolded; or, one hand can tightly hold the handle pipe, and the other hand can rotate the left telescopic pipe or the right telescopic pipe to synchronously unfold the left telescopic pipe or the right telescopic pipe. Therefore, the installation time of the horizontal bar on the door is short, the installation speed is high, and the user experience is good.
Secondly, the synchronizing tube is a square tube with a square central hole, and the cross section of the column head is matched with that of the central hole of the synchronizing tube, so that the first lead screw and the second lead screw can slide in the central hole of the synchronizing tube along the axial direction, and the second lead screw can synchronously rotate through the synchronizing tube when the first lead screw rotates; when the left telescopic pipe or the right telescopic pipe is rotated, the first lead screw and the second lead screw can be synchronously expanded or synchronously contracted in the central hole of the synchronous pipe along the axial direction of the synchronous pipe under the action of the first transmission nut and the second transmission nut.
Moreover, due to the arrangement of the long hole on the left extension tube, a movable gap is formed between the first lead screw and the left extension tube along the axial direction, and due to the arrangement of the elastic part, the left extension tube always has an outward movement trend, so that the first supporting foot and the second supporting foot are always attached to the door frame, and even if the two supporting feet are worn or aged, the first supporting foot and the second supporting foot can be tightly attached to the inner side wall of the door frame under the elastic force of the elastic part; and the elastic component gives the axial force of first lead screw, also makes the screw-thread fit of first drive nut and first lead screw inseparabler, further prevents handrail pipe antiport, and horizontal bar and door frame firm in connection on the door are stable, and are difficult for droing, and the security is good.
In addition, the locking mechanisms at the two ends of the handrail tube are connected or disconnected with the locking teeth of the lock seat by the aid of the locking teeth on the lock ring, so that the handrail tube, the left telescopic tube and the right telescopic tube are circumferentially locked or unlocked, namely when the locking teeth are connected with the locking teeth in a clamped mode, the handle tube is in a locked state, and circumferential rotation of the handle tube relative to the left telescopic tube and the right telescopic tube is limited; when the latch is disengaged from the lock tooth, the handle pipe is in an unlocking state, and the handle pipe can rotate circumferentially relative to the left and right telescopic pipes so as to adjust the telescopic length of the telescopic pipes. The bar body has a simple structure, a self-locking function and convenient self-locking operation, and only needs to axially move the locking ring. When the bar body is unfolded, the latch of the lock ring is separated from the lock teeth, then the lock ring is held by one hand, and the lock seat is rotated by the other hand; or the lock base is held by one hand, the lock ring can be rotated by the other hand to synchronously expand or contract the left and right telescopic pipes, and the operation is simple and convenient.
Another technical solution of the present invention is to provide a horizontal bar on a door having the following structure: it includes bar body, first arm brace and second arm brace, the bar body include
The handle comprises a handle pipe and a sleeve which is arranged in the handle pipe and synchronously rotates along with the handle pipe, wherein two ends of the sleeve are respectively connected with a first transmission nut and a second transmission nut;
two lead screws with opposite thread directions: the first lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the first transmission nut, and is arranged at the outer end of the first lead screw outside the sleeve; the second lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the second transmission nut, and is arranged at the outer end of the sleeve;
the synchronous pipe is arranged in the sleeve and sleeved on the first lead screw and the second lead screw, the synchronous pipe can circumferentially rotate relative to the sleeve, and the synchronous pipe is circumferentially limited relative to the first lead screw and the second lead screw;
the left telescopic pipe is in clearance fit in the handle pipe, the inner end of the left telescopic pipe is connected with the outer end of the first lead screw, and a movable clearance is formed between the inner end of the left telescopic pipe and the outer end of the first lead screw along the axial direction; the outer end of the left extension tube is connected with a first supporting leg;
the right telescopic pipe is in clearance fit in the handle pipe, the inner end of the right telescopic pipe is connected with the outer end of the second screw rod, and the outer end of the right telescopic pipe is connected with the second supporting leg;
the elastic piece is arranged in the left telescopic pipe, is connected with the left telescopic pipe and the first lead screw and is used for applying axial outward pressure to the left telescopic pipe so that the left telescopic pipe always has an outward movement trend.
As preferred, the inner of the telescopic pipe in a left side is equipped with along axially extended elongated hole, the outer end of first lead screw is connected with first connecting piece, first connecting piece sliding fit be in elongated hole, the one end of elastic component and the inner wall connection of the telescopic pipe in a left side, the other end of elastic component and the outer end of first lead screw are connected.
After the structure is adopted, compared with the prior art, the horizontal bar on the door has the following advantages: the synchronous pipe of the horizontal bar on the door is sleeved on the first lead screw and the second lead screw, can circumferentially rotate relative to the sleeve, and is circumferentially limited relative to the first lead screw and the second lead screw; therefore, when the left telescopic tube or the right telescopic tube is gripped, the circumferential rotation of the left telescopic tube, the right telescopic tube, the first lead screw and the second lead screw is limited; at the moment, the handle pipe is rotated to enable the first transmission nut and the second transmission nut to respectively rotate along the circumferential directions of the first lead screw and the second lead screw, so that the first lead screw and the second lead screw can be simultaneously unfolded or simultaneously contracted along the axial direction of the synchronous pipe; therefore, when the horizontal bar on the door is installed, only one hand is needed to hold the left telescopic pipe or the right telescopic pipe tightly, and the other hand is needed to rotate the handle pipe, so that the left telescopic pipe or the right telescopic pipe can be synchronously unfolded; or, one hand can tightly hold the handle pipe, and the other hand can rotate the left telescopic pipe or the right telescopic pipe to synchronously unfold the left telescopic pipe or the right telescopic pipe. Therefore, the installation time of the horizontal bar on the door is short, the installation speed is high, and the user experience is good. In addition, a movable gap exists between the inner end of the left telescopic pipe and the outer end of the first lead screw in the axial direction, and the elastic part in the left telescopic pipe applies axial outward pressure to the left telescopic pipe, so that the left telescopic pipe always has outward movement trend, and the first supporting leg and the second supporting leg are always attached to the door frame, therefore, even if the two supporting legs are worn or aged, the first supporting leg and the second supporting leg can be tightly attached to the inner side wall of the door frame under the elastic force of the elastic part, so that the horizontal bar on the door is connected with the door frame more firmly and stably and is not easy to fall off, and the safety is good.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a horizontal bar on a door of the invention.
Fig. 2 is a schematic sectional view of a first embodiment of a horizontal bar on a door according to the present invention.
Fig. 3 is a partial cross-sectional structural view of a first embodiment of a horizontal bar on a door of the present invention.
FIG. 4 is a schematic structural view of a bar body according to a first embodiment of a horizontal bar of a door of the present invention.
Fig. 5 is a schematic structural view of a locking mechanism of a first embodiment of a horizontal bar on a door of the present invention.
Fig. 6 is a partial cross-sectional structural view of a first embodiment of a horizontal bar on a door of the present invention.
FIG. 7 is a schematic view of the structure of a bar body according to a second embodiment of the door horizontal bar of the present invention.
As shown in the figure:
1. the lever body 100, the handle tube 101, the sleeve 102, the left telescopic tube 103, the right telescopic tube 104, the synchronizing tube 105, the first lead screw 106, the second lead screw 107, the first transmission nut 108, the second transmission nut 109, the first holder 110, the second holder 111, the elongated hole 112, the first connecting piece 113, the mounting hole 114, the second connecting piece 115, the column head 116, the guide groove 117, the fixing column 2, the first supporting leg 200, the second supporting leg 3, the base 300, the level gauge 4, the locking mechanism 400, the locking ring 401, the locking seat 402, the latch 403, the latch 404, and the limiting block.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The first embodiment is as follows:
referring to fig. 1 to 6, an embodiment of the present invention discloses a horizontal bar on a door, which includes a bar body 1, a left extension tube 102, a right extension tube 103, a first arm brace 2, a second arm brace 200, and two screws with opposite thread directions: the bar body 1 comprises a handle pipe 100 and a sleeve 101 which is arranged in the handle pipe 100 and synchronously rotates along with the handle pipe 100, two ends of the sleeve 101 are respectively connected with a first transmission nut 107 and a second transmission nut 108, namely the first transmission nut 107 and the second transmission nut 108 are fixedly connected in inner holes at two ends of the sleeve 101 and synchronously rotate along with the sleeve 101, wherein the thread direction of the first transmission nut 107 is matched with the first lead screw 105, and the thread direction of the second transmission nut 108 is matched with the second lead screw 106; the first lead screw 105 is sleeved in the sleeve 101 in an axially sliding manner, the first lead screw 105 is in threaded connection with the first transmission nut 107, and the outer end of the first lead screw 105 is arranged on the outer side of the sleeve 101; the second lead screw 106 is sleeved in the sleeve 101 in an axially sliding manner, the second lead screw 106 is in threaded connection with the second transmission nut 108, and the outer end of the second lead screw 106 is arranged on the outer side of the sleeve 101; the lever body 1 of the horizontal bar on the door further comprises a synchronizing tube 104, the synchronizing tube 104 is in clearance fit in the sleeve 101 and sleeved on the first lead screw 105 and the second lead screw 106, the synchronizing tube 104 is configured to be circumferentially rotatable relative to the sleeve 101, and the synchronizing tube 104 is circumferentially limited relative to the first lead screw 105 and the second lead screw 106; the left extension tube 102 is in clearance fit in the handle tube 100, the inner end of the left extension tube is connected with the outer end of a first lead screw 105, and the outer end of the left extension tube 102 is connected with a first supporting leg 2; the right telescopic tube 103 is in clearance fit in the handle tube 100, the inner end of the right telescopic tube is connected with the outer end of the second lead screw 106, and the outer end of the right telescopic tube 103 is connected with the second supporting foot 200.
A left extension tube 102 of a horizontal bar on the door is connected with a first lead screw 105, and a right extension tube 103 is connected with a second lead screw 106, so that the left extension tube 102 and the first lead screw 105 synchronously move, and the right extension tube 103 and the second lead screw 106 synchronously move; a synchronous pipe 104 is arranged in the sleeve 101 of the horizontal bar on the door, the synchronous pipe 104 is sleeved on a first lead screw 105 and a second lead screw 106, the synchronous pipe 104 can circumferentially rotate relative to the sleeve 101, and the synchronous pipe 104 is circumferentially limited relative to the first lead screw 105 and the second lead screw 106; therefore, when the left extension tube 102 or the right extension tube 103 is gripped, the circumferential rotation of the left extension tube 102, the right extension tube 103, the first lead screw 105 and the second lead screw 106 is limited; at this time, the handle pipe 100 is rotated to rotate the first and second transmission nuts 107 and 108 in the circumferential directions of the first and second lead screws 105 and 106, respectively, so that the first and second lead screws 105 and 106 can be simultaneously extended or retracted in the axial direction of the synchronizing pipe 104; therefore, when the door is installed on a horizontal bar, only one hand is needed to hold the left extension tube 102 or the right extension tube 103 tightly, and the other hand is needed to rotate the handle tube 100 to synchronously expand the left extension tube 102 or the right extension tube 103; or, the handle pipe 100 is held by one hand, and the left extension pipe 102 or the right extension pipe 103 can be synchronously unfolded by rotating the left extension pipe 102 or the right extension pipe 103 by the other hand, so that the left extension pipe 102 does not need to be unfolded first and the right extension pipe 103 does not need to be unfolded later, and therefore, when the door is installed on a horizontal bar, the time is short, the installation speed is high, and the user experience is good.
Referring to fig. 3 again, in the present embodiment, the synchronizing tube 104 is a square tube with a square central hole, the inner ends of the first lead screw 105 and the second lead screw 106 are connected with a column head 115, and the cross section of the column head 115 is matched with the cross section of the central hole of the synchronizing tube 104, so that the inner ends of the first lead screw 105 and the second lead screw 106 can slide in the central hole of the synchronizing tube 104 along the axial direction. Thus, when the first lead screw 105 rotates, the second lead screw 106 can synchronously rotate through the synchronous pipe 104; when the left extension tube 102 or the right extension tube 103 is rotated, the first lead screw 105 and the second lead screw 106 can be synchronously expanded or synchronously contracted in the central hole of the synchronizing tube 104 along the axial direction of the synchronizing tube 104 under the action of the first transmission nut 107 and the second transmission nut 108.
Referring to fig. 4 again, in this embodiment, the outer end of the first lead screw 105 is connected to a first connecting member 112, the inner end of the left extension tube 102 is provided with an elongated hole 111 extending along the axial direction of the left extension tube 102, and the first connecting member 112 is slidably fitted in the elongated hole 111 for making the left extension tube 102 axially movable relative to the first lead screw 105; an elastic piece is arranged in the left extension tube 102, one end of the elastic piece is connected with a fixed column 117 on the inner wall of the left extension tube 102, the other end of the elastic piece is connected with the outer end of a first lead screw 105, and the elastic piece is used for applying axial outward pressure to the left extension tube 102 so that the left extension tube 102 always has an outward movement trend. The arrangement of the elongated hole 111 on the left extension tube 102 enables a movable gap to exist between the first lead screw 105 and the left extension tube 102 along the axial direction, and the arrangement of the elastic member enables the left extension tube 102 to always have an outward movement trend, so that the first arm brace 2 and the second arm brace 200 are always attached to the door frame, and even if the two arm braces are worn or aged, the first arm brace 2 and the second arm brace 200 can be tightly attached to the inner side wall of the door frame under the elastic force of the elastic member; and the elastic component gives the axial force of first lead screw 105, also makes first drive nut 107 inseparabler with the screw-thread fit of first lead screw 105, further prevents handrail pipe antiport, and horizontal bar and door frame firm in connection, stability on the door, and difficult droing, the security is good. In this embodiment, the outer end of the second lead screw 106 is connected to a second connecting member 114, the inner end of the right telescopic tube 103 is provided with a mounting hole 113, and the second connecting member 114 is connected to the mounting hole 113. The first connecting member 112 and the second connecting member 114 are both connecting pins, and may also be connecting screws, bolts, or the like.
Referring to fig. 2 and 4 again, a first holder 109 is connected in the inner end inner hole of the left extension tube 102, and the inner wall of the central hole of the first holder 109 is in clearance fit with the outer side wall of the first lead screw 105; the inner end inner hole of the right telescopic tube 103 is connected with a second holding frame 110, and the inner wall of the central hole of the second holding frame 110 is in clearance fit with the outer side wall of the second lead screw 106. In this embodiment, the first holder 109 is a first holding nut, the second holder 110 is a second holding nut, the first holding nut is screwed with the first lead screw 105, and the second holding nut is screwed with the second lead screw 106. And the thread direction of the first holding nut is the same as the thread direction of the first transferring nut, and the thread direction of the second holding nut is the same as the thread direction of the second transferring nut.
Referring to fig. 1 again, a base 3 is connected to the handrail tube, and a level 300 is connected to the base 3; the level gauge 300 is a level gauge 300 having a vacuum tube filled with liquid and bubbles, and determines whether or not the bar 1 is horizontal based on the position of the bubbles.
Referring to fig. 5, in this embodiment, both ends of the handrail tube are connected with a locking mechanism 4, the locking mechanism 4 includes a locking ring 400 sliding along the length direction of the left extension tube 102 or the right extension tube 103 and circumferentially limiting, and a lock seat 401 connected to the end of the handrail tube and synchronously rotating with the handrail tube, the inner wall of the locking ring 400 is provided with a latch 402, and the outer side wall of the lock seat 401 near one end of the locking ring 400 is provided with a lock tooth 403 for the latch 402 to latch. In this embodiment, the outer side wall of the left extension tube 102 or the right extension tube 103 is provided with a guide groove 116 extending along the axial direction and being concave inwards, and the lock ring 400 is provided with a limit block 404 in clearance fit with the guide groove 116, so that the lock ring 400 can slide along the length direction of the left extension tube 102 or the right extension tube 103 and is limited circumferentially; the locking mechanism 4 is clamped with or separated from the locking tooth 403 of the lock base 401 by using the latch 402 on the lock ring 400, so that the grab handle 100 is in a locking state and the circumferential rotation of the grab handle 100 relative to the left extension tube 102 and the right extension tube 103 is limited, when the latch 402 is clamped with the locking tooth 403, the grab handle is circumferentially locked or unlocked with the left extension tube 102 and the right extension tube 103; when the latch 402 is disengaged from the lock tooth 403, the handle tube 100 is in an unlocked state, and the handle tube 100 can rotate circumferentially relative to the left extension tube 102 and the right extension tube 103 to adjust the extension length of the two extension tubes. The bar body 1 has simple structure, self-locking function and convenient self-locking operation, and only needs to axially move the locking ring 400.
The second embodiment; referring to fig. 7, in the present embodiment, the horizontal bar on the door includes a bar body 1, a first supporting leg 2 and a second supporting leg 200, the bar body 1 includes a handle tube 100 and a sleeve 101 disposed in the handle tube 100 and rotating synchronously with the handle tube 100, and two ends of the sleeve 101 are respectively connected to a first transmission nut 107 and a second transmission nut 108; two lead screws with opposite thread directions: the first lead screw 105 is sleeved in the sleeve 101 in a sliding manner along the axial direction, the first lead screw 105 is in threaded connection with the first transmission nut 107, and the outer end of the first lead screw 105 is arranged on the outer side of the sleeve 101; the second lead screw 106 is sleeved in the sleeve 101 in an axially sliding manner, the second lead screw 106 is in threaded connection with the second transmission nut 108, and the outer end of the second lead screw 106 is arranged on the outer side of the sleeve 101; the synchronizing tube 104 is arranged in the sleeve 101 and sleeved on the first lead screw 105 and the second lead screw 106, the synchronizing tube 104 can circumferentially rotate relative to the sleeve 101, and the synchronizing tube 104 is circumferentially limited relative to the first lead screw 105 and the second lead screw 106; the left extension tube 102 is in clearance fit in the handle tube 100, the inner end of the left extension tube 102 is connected with the outer end of a first lead screw 105, a movable clearance exists between the inner end of the left extension tube 102 and the outer end of the first lead screw 105 along the axial direction, and the outer end of the left extension tube 102 is connected with a first supporting leg 2; the right telescopic pipe 103 is in clearance fit in the handle pipe 100, the inner end of the right telescopic pipe 103 is connected with the outer end of a second lead screw 106, and the outer end of the right telescopic pipe 103 is connected with a second supporting leg 200; and the elastic element is arranged in the left extension tube 102, is connected with the left extension tube 102 and the first lead screw 105, and is used for applying axial outward pressure to the left extension tube 102 so that the left extension tube 102 always has an outward movement trend. The inner of the left telescopic tube 102 is provided with an elongated hole 111 extending along the axial direction, the outer end of the first lead screw 105 is connected with a first connecting piece 112, the first connecting piece 112 is in sliding fit in the elongated hole 111, one end of the elastic piece is connected with the inner wall of the left telescopic tube 102, and the other end of the elastic piece is connected with the outer end of the first lead screw 105.
A synchronizing tube 104 of the horizontal bar on the door is sleeved on the first lead screw 105 and the second lead screw 106, the synchronizing tube 104 can circumferentially rotate relative to the sleeve 101, and the synchronizing tube 104 circumferentially limits relative to the first lead screw 105 and the second lead screw 106; therefore, when left extension tube 102 or right extension tube 103 is gripped, the circumferential rotation of left extension tube 102, right extension tube 103, first lead screw 105 and second lead screw 106 is all limited; at this time, the handle pipe 100 is rotated to rotate the first and second transmission nuts 107 and 108 in the circumferential directions of the first and second lead screws 105 and 106, respectively, so that the first and second lead screws 105 and 106 can be simultaneously extended or retracted in the axial direction of the synchronizing pipe 104; therefore, when the door is installed on a horizontal bar, only one hand is needed to hold the left extension tube 102 or the right extension tube 103 tightly, and the other hand is needed to rotate the handle tube 100 to synchronously expand the left extension tube 102 or the right extension tube 103; alternatively, by grasping handle tube 100 with one hand and rotating left telescoping tube 102 or right telescoping tube 103 with the other hand, left telescoping tube 102 or right telescoping tube 103 can be synchronously expanded. Therefore, the horizontal bar on the door can enable the left telescopic pipe 102 and the right telescopic pipe 103 to be synchronously expanded or contracted, so that the installation time is short, the installation speed is high, and the user experience is good. In addition, a movable gap exists between the inner end of the left extension tube 102 and the outer end of the first lead screw 105 along the axial direction, and an elastic part in the left extension tube 102 applies an axially outward pressure to the left extension tube 102, so that the left extension tube 102 always has an outward movement trend, and the first supporting leg 2 and the second supporting leg 200 are always attached to the door frame, therefore, even if the two supporting legs are worn or aged, the first supporting leg 2 and the second supporting leg 200 can be tightly attached to the inner side wall of the door frame under the elastic force of the elastic part, so that the horizontal bar on the door is connected with the door frame more firmly and stably, and is not easy to fall off, and the safety is good. Other technical solutions of this embodiment are the same as those of the first embodiment, and the description of this embodiment is not repeated.
Like reference numerals in the drawings of the present embodiment correspond to like parts; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a horizontal bar on door, it includes the thick stick body, first spike and second spike, its characterized in that: the bar body comprises
The handle comprises a handle pipe and a sleeve which is arranged in the handle pipe and synchronously rotates along with the handle pipe, wherein two ends of the sleeve are respectively connected with a first transmission nut and a second transmission nut;
two lead screws with opposite thread directions: the first lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the first transmission nut, and is arranged at the outer end of the first lead screw outside the sleeve; the second lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the second transmission nut, and is arranged at the outer end of the sleeve;
the synchronous pipe is arranged in the sleeve and sleeved on the first lead screw and the second lead screw, the synchronous pipe can circumferentially rotate relative to the sleeve, and the synchronous pipe is circumferentially limited relative to the first lead screw and the second lead screw;
the left telescopic pipe is in clearance fit in the handle pipe, the inner end of the left telescopic pipe is connected with the outer end of the first lead screw, and the outer end of the left telescopic pipe is connected with the first supporting leg;
and the right telescopic pipe is in clearance fit in the handle pipe, the inner end of the right telescopic pipe is connected with the outer end of the second lead screw, and the outer end of the right telescopic pipe is connected with the second supporting leg.
2. The door horizontal bar of claim 1, wherein: the synchronizing tube is a square tube with a square central hole, the inner ends of the first lead screw and the second lead screw are both connected with a column head, and the cross section of the column head is matched with that of the central hole of the synchronizing tube, so that the inner ends of the first lead screw and the second lead screw can slide in the central hole of the synchronizing tube along the axial direction.
3. The horizontal bar on a door of claim 1, wherein: the outer end of the first lead screw is connected with a first connecting piece, the inner end of the left telescopic pipe is provided with a long hole extending along the axial direction of the left telescopic pipe, and the first connecting piece is in sliding fit in the long hole and is used for enabling the left telescopic pipe to have a movable gap in the axial direction relative to the first lead screw; the left telescopic pipe is internally provided with an elastic part, one end of the elastic part is connected with the inner wall of the left telescopic pipe, the other end of the elastic part is connected with the outer end of the first screw rod, and the elastic part is used for applying axial outward pressure to the left telescopic pipe so that the left telescopic pipe always has an outward movement trend.
4. The door horizontal bar of claim 3, wherein: the outer end of the second lead screw is connected with a second connecting piece, the inner end of the right telescopic tube is provided with a mounting hole, and the second connecting piece is connected in the mounting hole.
5. The door horizontal bar of claim 1, wherein: a first holder is connected in an inner end inner hole of the left telescopic pipe, and the inner wall of a central hole of the first holder is in clearance fit with the outer side wall of the first lead screw; and a second retainer is connected in an inner end inner hole of the right telescopic pipe, and the inner wall of a central hole of the second retainer is in clearance fit with the outer side wall of the second lead screw.
6. The door horizontal bar of claim 5, wherein: the first retainer is a first retaining nut, the second retainer is a second retaining nut, the first retaining nut is in threaded connection with the first lead screw, and the second retaining nut is in threaded connection with the second lead screw.
7. The horizontal bar on a door of claim 1, wherein: the handrail tube is connected with a base, and the base is connected with a level gauge.
8. The door horizontal bar of claim 1, wherein: the both ends of handrail pipe all are connected with locking mechanism, locking mechanism include along the slip of left telescopic tube or right telescopic tube length direction and the spacing lock circle of circumference and connect at handrail pipe tip and with the synchronous pivoted lock seat of handrail pipe, be equipped with the latch on the inner wall of lock circle, be equipped with the lock tooth that can supply the latch joint on the lateral wall that the lock seat is close to lock circle one end.
9. The utility model provides a horizontal bar on door, it includes the thick stick body, first arm-brace and second arm-brace, its characterized in that: the bar body comprises
The handle comprises a handle pipe and a sleeve which is arranged in the handle pipe and synchronously rotates along with the handle pipe, wherein two ends of the sleeve are respectively connected with a first transmission nut and a second transmission nut;
two lead screws with opposite thread directions: the first lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the first transmission nut, and is arranged at the outer end of the first lead screw outside the sleeve; the second lead screw is sleeved in the sleeve in an axially sliding manner, is in threaded connection with the second transmission nut, and is arranged at the outer end of the sleeve;
the synchronous pipe is arranged in the sleeve and sleeved on the first lead screw and the second lead screw, the synchronous pipe can circumferentially rotate relative to the sleeve, and the synchronous pipe is circumferentially limited relative to the first lead screw and the second lead screw;
the left telescopic pipe is in clearance fit in the handle pipe, the inner end of the left telescopic pipe is connected with the outer end of the first lead screw, a movable clearance exists between the inner end of the left telescopic pipe and the outer end of the first lead screw along the axial direction, and the outer end of the left telescopic pipe is connected with the first supporting foot;
the right telescopic pipe is in clearance fit in the handle pipe, the inner end of the right telescopic pipe is connected with the outer end of the second screw rod, and the outer end of the right telescopic pipe is connected with the second supporting leg;
the elastic piece is arranged in the left telescopic pipe, is connected with the left telescopic pipe and the first lead screw and is used for applying axial outward pressure to the left telescopic pipe so that the left telescopic pipe always has an outward movement trend.
10. The door horizontal bar of claim 9, wherein: the inner of the left telescopic pipe is provided with a long hole extending along the axial direction, the outer end of the first lead screw is connected with a first connecting piece, the first connecting piece is in sliding fit with the long hole, one end of the elastic piece is connected with the inner wall of the left telescopic pipe, and the other end of the elastic piece is connected with the outer end of the first lead screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210825263.0A CN115337589A (en) | 2022-07-13 | 2022-07-13 | Horizontal bar on door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210825263.0A CN115337589A (en) | 2022-07-13 | 2022-07-13 | Horizontal bar on door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115337589A true CN115337589A (en) | 2022-11-15 |
Family
ID=83947497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210825263.0A Pending CN115337589A (en) | 2022-07-13 | 2022-07-13 | Horizontal bar on door |
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| Country | Link |
|---|---|
| CN (1) | CN115337589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024128589A1 (en) * | 2022-12-15 | 2024-06-20 | Atflee Inc. | Pull-up bar for doorframe |
-
2022
- 2022-07-13 CN CN202210825263.0A patent/CN115337589A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024128589A1 (en) * | 2022-12-15 | 2024-06-20 | Atflee Inc. | Pull-up bar for doorframe |
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