A built-in door belt transmission mechanism

Abstract

The present invention discloses a built-in door belt transmission mechanism, including a first shell, a second shell, a through groove, a groove wheel, a belt, a vertical rod and a door body, wherein the outer wall gap of the first shell is matched with the second shell, the inner wall bottoms of the first shell and the second shell are processed with through grooves, the inner walls of the first shell and the second shell are both connected to groove wheels through a connecting piece, and the two groove wheels are connected to each other through a belt. The built-in door belt transmission mechanism is rotated by a handle in an adjustment mechanism, and the handle drives the first screw rod to rotate. When the first screw rod rotates, it can be connected through the sliding of a sleeve and a slide rod, and the sleeve guides the cylinder body to move downward, and drives the cylinder body and the block body to move downward. When the block body moves downward, the clamping rod and the clamping groove can be cancelled, and then the first shell and the second shell body are moved outward on both sides, and then the distance between the two groove wheels is adjusted, and then the door body can be pulled at different distances according to the actual moving distance of the door body.

Description

Technical Field

[0001] The invention relates to the technical field of subway doors, in particular to a built-in door belt transmission mechanism. Background Art

[0002] Belt drive is a kind of mechanical transmission that uses a flexible belt stretched on a pulley to transmit motion or power. According to different transmission principles, there are friction belt drives that rely on the friction between the belt and the pulley, and there are also synchronous belt drives that rely on the meshing of the teeth on the belt and the pulley.

[0003] Although the existing built-in door belt transmission mechanism can drive the built-in door to move, there is a problem that the moving range of the built-in door pulled by the existing built-in door belt transmission mechanism is fixed, and the moving range of the built-in door pulled by the existing built-in door belt transmission mechanism cannot be expanded according to actual work needs. Summary of the invention

[0004] The object of the present invention is to provide a built-in door belt transmission mechanism to solve the problem raised in the above background technology that the existing built-in door belt transmission mechanism has a fixed moving range for pulling the built-in door and cannot expand the moving range of pulling the built-in door according to actual work requirements.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a built-in door belt transmission mechanism, comprising a first shell, a second shell, a through groove, a groove wheel, a belt, a vertical rod and a door body, the outer wall gap of the first shell is matched with the second shell, the bottom of the inner wall of the first shell and the second shell are processed with a through groove, the inner walls of the first shell and the second shell are rotatably connected to the groove wheel through a connecting piece, the two groove wheels are rotatably connected through a belt, the bottom of the belt is fixedly connected to a vertical rod, the outer wall of the vertical rod is slidably connected to the inner walls of the two through grooves, the bottom of the vertical rod is fixedly connected to the door body, and the top of the second shell is provided with an adjustment mechanism. The mechanism includes a first screw rod, which is rotatably connected to the second shell body through a bearing, a handle is fixedly connected to the top of the first screw rod, and the outer wall of the first screw rod is threadedly connected to a barrel body, a block is fixedly connected to the front end face of the barrel body, a clamping rod is fitted on the top of the block body, and the clamping rod is rotatably connected to the second shell body through a connecting shaft, a plurality of clamping grooves are provided on the top of the clamping rod, and the plurality of clamping grooves are all machined on the bottom of the inner wall of the first shell body, and the inner wall of the clamping groove at one end is clamped together with the outer wall of the clamping rod, a sliding rod is fixedly connected to the top of the inner wall of the second shell, and the outer wall of the sliding rod is slidably connected to a sliding sleeve, and the sliding sleeve is fixed to one end of the outer wall of the barrel body.

[0006] Preferably, a speed changing mechanism is provided on the inner wall of the first shell, and the speed changing mechanism includes a cross bar, and the outer wall of the cross bar is clearance-matched with the inner wall of the first shell. The cross bar is rotatably connected to two round rods through a bearing, and the two ends of the outer wall of the round rod at one end are fixed with a first gear, and the two ends of the outer wall of the round rod at the other end are fixed with a second gear, and one end of the outer wall of the two first gears is respectively meshed and connected with a third gear and a fourth gear, the bottom of the third gear is fixed to the top of the groove wheel at one end, and the top of the fourth gear is fixed with a motor, and the motor is installed on the top of the inner wall of the first shell.

[0007] Preferably, a traction mechanism is provided at one end of the outer wall of the first shell, and the traction mechanism includes a second screw rod, which is rotatably connected to the first shell via a bearing, a handle is fixed to one end of the outer wall of the second screw rod, and the outer wall of the second screw rod is threadedly connected to the inner wall of the cross bar.

[0008] Compared with the prior art, the beneficial effects of the present invention are: the built-in door belt transmission mechanism, through the rotation of the handle in the adjustment mechanism, the handle drives the first screw to rotate, and when the first screw rotates, it can be connected through the sliding of the sliding sleeve and the sliding rod, and the sliding sleeve guides the cylinder to rise and fall, driving the cylinder and the block to move downward. When the block moves downward, the tight contact between the clamping rod and the clamping groove can be cancelled, and the first shell and the second shell can be moved to the outside sides, thereby adjusting the distance between the two groove wheels, and then the door body can be pulled at different distances according to the actual moving distance of the door body.

[0009] By rotating the handle in the traction mechanism, the handle drives the second screw to rotate. When the second screw rotates, it can drive the cross bar to move stably left and right on the inner wall of the track, and then the two second gears or the two first gears can be engaged with the third gear and the fourth gear respectively. According to the drive of the second gear or the first gear, the motor can drive the two groove wheels and the traction belt to rotate at different speeds, which is convenient for traction at various speeds according to the movement requirements of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the connection relationship of the present invention;

[0011] Figure 2 for Figure 1 A schematic cross-sectional view of the first shell and the second shell;

[0012] Figure 3 for Figure 2 A schematic diagram of the structure of the middle block, the clamping rod and the clamping slot;

[0013] Figure 4 for Figure 2 Schematic diagram of the structure of the middle crossbar, the fourth gear and the motor.

[0014] In the figure: 1. first shell, 2. second shell, 3. through groove, 4. groove wheel, 5. belt, 6. vertical rod, 7. adjustment mechanism, 701. first screw rod, 702. handle, 703. cylinder, 704. block, 705. clamping rod, 706. clamping groove, 8. speed change mechanism, 801. cross rod, 802. round rod, 803. first gear, 804. second gear, 805. third gear, 806. fourth gear, 807. motor, 9. traction mechanism, 901. second screw rod, 902. handle, 10. door body, 11. sliding sleeve, 12. sliding rod, 13. track. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-4The present invention provides a technical solution: a built-in door belt transmission mechanism, comprising a first shell 1, a second shell 2, a through groove 3, a groove wheel 4, a belt 5, a vertical rod 6 and a door body 10, the outer wall gap of the first shell 1 is matched with the second shell 2, the inner wall bottoms of the first shell 1 and the second shell 2 are processed with through grooves 3, the inner walls of the first shell 1 and the second shell 2 are rotatably connected with the groove wheel 4 through a connecting piece, the two groove wheels 4 are rotatably connected through a belt 5, the bottom of the belt 5 is fixed with a vertical rod 6, the belt 5 can drive the vertical rod 6 to move left and right, the outer wall of the vertical rod 6 is slidably connected to the inner walls of the two through grooves 3, the vertical rod 6 can slide left and right on the inner wall of the through groove 3, the bottom of the vertical rod 6 is fixed with the door body 10, the vertical rod 6 can drive the door body 10 to move left and right, the top of the second shell 2 is provided with an adjusting mechanism 7, the adjusting mechanism 7 includes a first screw rod 701, the first screw rod 701 is rotatably connected to the second shell 2 through a bearing, and the top of the first screw rod 701 is fixed with a handle 702 The handle 702 can drive the first screw rod 701 to rotate. The outer wall of the first screw rod 701 is threadedly connected to the cylinder 703. The first screw rod 701 can drive the cylinder 703 to move up and down. The front end surface of the cylinder 703 is fixedly connected to the block 704. The top of the block 704 is attached with a clamping rod 705. The block 704 can drive the clamping rod 705 to rotate upward, and clamp the clamping rod 705 with the clamping groove 706. The clamping rod 705 is rotatably connected to the second shell 2 through the connecting shaft. A plurality of card slots 706 are provided at the top, and the plurality of card slots 706 are all processed at the bottom of the inner wall of the first shell 1. The inner wall of the card slot 706 at one end is clamped together with the outer wall of the clamping rod 705. A sliding rod 12 is fixedly connected to the top of the inner wall of the second shell 2. The outer wall of the sliding rod 12 is slidably connected to a sliding sleeve 11. The sliding sleeve 11 can guide the lifting movement of the cylinder 703, thereby improving the stability of the lifting movement of the cylinder 703 driven by the first screw 701. The sliding sleeve 11 is fixedly connected to one end of the outer wall of the cylinder 703.

[0017] The inner wall of the first housing 1 is provided with a speed change mechanism 8, which includes a cross bar 801, the outer wall of the cross bar 801 is in clearance with the inner wall of the first housing 1, the cross bar 801 is rotatably connected to two round bars 802 through a bearing, both ends of the outer wall of the round bar 802 at one end are fixedly connected to a first gear 803, and both ends of the outer wall of the round bar 802 at the other end are fixedly connected to a second gear 804, one end of the outer wall of the two first gears 803 is respectively meshed with a third gear 805 and a fourth gear 806, and the fourth gear 806 can drive the two first gears 803 Rotate, thereby driving the third gear 805 to rotate, or the fourth gear 806 can drive the two second gears 804 to rotate, thereby driving the third gear 805 to rotate, the bottom of the third gear 805 is fixedly connected to the top of the groove wheel 4 at one end, and the top of the fourth gear 806 is fixedly connected to the motor 807, and the model of the motor 807 is selected according to actual work requirements. The motor 807 is installed on the top of the inner wall of the first shell 1, and the rear end face of the inner wall of the first shell 1 is fixedly connected to the track 13, and the inner wall of the track 13 is slidably connected to the outer wall of the cross bar 801.

[0018] A traction mechanism 9 is provided at one end of the outer wall of the first shell 1, and the traction mechanism 9 includes a second screw 901, and the second screw 901 is rotatably connected to the first shell 1 through a bearing. A handle 902 is fixedly connected to one end of the outer wall of the second screw 901, and the handle 902 can drive the second screw 901 to rotate. The outer wall of the second screw 901 is threadedly connected to the inner wall of the cross bar 801, and the second screw 901 can drive the cross bar 801 to move left and right.

[0019] When the built-in door belt transmission mechanism is used, the handle 702 is turned, and the handle 702 drives the first screw rod 701 to rotate. When the first screw rod 701 rotates, it can be connected through the sliding of the sliding sleeve 11 and the sliding rod 12. The sliding sleeve 11 guides the cylinder 703 to move up and down, and drives the cylinder 703 and the block 704 to move downward. When the block 704 moves downward, the clamping rod 705 and the clamping groove 706 can be cancelled, and the first shell 1 and the second shell 2 can be moved outward to both sides, so as to adjust the distance between the two groove wheels 4, and then the door body 10 can be adjusted according to the actual movement distance of the door body 10. The handle 902 can be rotated to drive the second screw 901 to rotate. When the second screw 901 rotates, the cross bar 801 can be driven to move stably left and right on the inner wall of the track 13, and then the two second gears 804 or the two first gears 803 can be meshed with the third gear 805 and the fourth gear 806 respectively. According to the drive of the second gear 804 or the first gear 803, the motor 807 can drive the two groove wheels 4 and the traction belt 5 to rotate at different speeds, which is convenient for traction at various speeds according to the movement requirements of the door body 10.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A built-in door belt transmission mechanism, comprising a first shell (1), a second shell (2), a through groove (3), a groove wheel (4), a belt (5), a vertical rod (6) and a door body (10), wherein the outer wall of the first shell (1) is gap-fitted with the second shell (2), the inner wall bottoms of the first shell (1) and the second shell (2) are both processed with through grooves (3), the inner walls of the first shell (1) and the second shell (2) are both rotatably connected to the groove wheel (4) through a connecting piece, the two groove wheels (4) are rotatably connected through a belt (5), the bottom of the belt (5) is fixedly connected to the vertical rod (6), the outer wall of the vertical rod (6) is slidably connected to the inner walls of the two through grooves (3), and the bottom of the vertical rod (6) is fixedly connected to the door body (10), characterized in that: An adjusting mechanism (7) is provided at the top of the second housing (2), the adjusting mechanism (7) comprising a first screw (701), the first screw (701) being rotatably connected to the second housing (2) via a bearing, a handle (702) being fixedly connected to the top of the first screw (701), a barrel (703) being threadedly connected to the outer wall of the first screw (701), a block (704) being fixedly connected to the front end surface of the barrel (703), a clamping rod (705) being attached to the top of the block (704), and the clamping rod (705) being fixedly connected to the outer wall of the first screw (701). 705) is rotatably connected to the second shell (2) via a connecting shaft, a plurality of slots (706) are provided on the top of the clamping rod (705), the plurality of slots (706) are processed on the bottom of the inner wall of the first shell (1), the inner wall of the slot (706) at one end is clamped together with the outer wall of the clamping rod (705), a sliding rod (12) is fixedly connected to the top of the inner wall of the second shell (2), the outer wall of the sliding rod (12) is slidably connected to a sliding sleeve (11), and the sliding sleeve (11) is fixedly connected to one end of the outer wall of the cylinder (703); The inner wall of the first housing (1) is provided with a speed change mechanism (8), the speed change mechanism (8) comprising a cross bar (801), the outer wall of the cross bar (801) being loosely matched with the inner wall of the first housing (1), the cross bar (801) being rotatably connected to two round bars (802) via a bearing, the outer walls of the round bars (802) at one end being fixedly connected to first gears (803) at both ends, the outer walls of the round bars (802) at the other end being fixedly connected to second gears (804), the outer walls of the two first gears (803) being meshed and connected to a third gear (805) and a fourth gear (806) at one end, the bottom of the third gear (805) being fixedly connected to the top of a grooved wheel (4) at one end, the top of the fourth gear (806) being fixedly connected to a motor (807), the motor (807) being mounted on the top of the inner wall of the first housing (1).

2. The inner door belt transmission mechanism according to claim 1, characterized in that: A traction mechanism (9) is provided at one end of the outer wall of the first shell (1), the traction mechanism (9) comprising a second screw rod (901), the second screw rod (901) being rotatably connected to the first shell (1) via a bearing, a handle (902) being fixedly connected to one end of the outer wall of the second screw rod (901), and the outer wall of the second screw rod (901) being threadedly connected to the inner wall of the cross bar (801).

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