Modular door closer easy to assemble

Abstract

The door closer comprises a shell, a piston component, a shaft body component and a plug component are arranged in the shell, and the shaft body component is connected with a fixing base through a connecting rod assembly. A left-right through channel is arranged in the shell, and the plug component comprises plugs which are arranged at the left end and the right end of the channel to seal the channel; the piston component, the shaft body component and the plug component are arranged in the hydraulic cylinder, so that the hydraulic cylinder is easy to assemble, assembly line work is easy to set through modular arrangement, the production efficiency is improved, and the modular arrangement is easy to disassemble, so that the hydraulic cylinder is convenient to maintain and the maintenance cost is reduced when the hydraulic cylinder is damaged or leaks oil; the gear shaft is further provided with the sealing cover used for shielding the shaft body part, the sealing cover can be installed by directly inserting the friction column into the gear shaft, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to door closer technical field especially relates to a modular design easy to assemble's door closer. BACKGROUND

[0002] Door closer is a kind of mechanical device installed on the door, mainly for automatically closing the door opened, and control the speed and force of door closing.

[0003] Door closer is usually composed of spring, hydraulic cylinder, piston, shell, connecting piece and multiple components, as shown in the door closer disclosed in application No.202421257860.9, the multiple components in the door closer usually need to be irregular at present, not modular design, there may be installation difficult problem in the process of part installation in turn, therefore need to improve, to improve the assembly efficiency of door closer. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a modular design easy to assemble's door closer to solve the problems mentioned in the above background art.

[0005] The utility model provides the following technical scheme: a modular design easy to assemble's door closer, including shell, the shell is provided with piston component, shaft body component and plug component in, the shaft body component is connected with fixed seat by connecting rod assembly;

[0006] The shell is equipped with the passage that passes through left and right, and the plug component includes the plug that is closed in the passage left and right two ends to close the passage;

[0007] The piston component includes the piston cylinder that is slidably connected in the passage, the side surface of the passage is equipped with flow channel, the piston cylinder is equipped with the accommodating groove, and the one side of the accommodating groove is processed with the tooth surface, the piston cylinder is also connected with the plug on the right side by spring, and the left and right side surfaces of the accommodating groove are respectively equipped with one through hole, and the through hole in the left side is equipped with the one-way valve that flows to the left;

[0008] The side surface of the passage is provided with the mounting hole that extends vertically, the shaft body component includes the gear shaft that is engaged with the tooth surface by the mounting hole and extends into the passage, and the gear shaft is provided with bearing piece, so that it can rotate in the mounting hole.

[0009] Preferably, the flow channel includes a first flow channel and a second flow channel, the inlet and outlet in the second flow channel are arranged left and right, the inlet in the first flow channel is between the inlet and outlet in the second flow channel, the outlet in the first flow channel is on the right side of the outlet in the second flow channel, and the diameters of the first flow channel and the second flow channel are not the same.

[0010] Preferably, an inner spring is arranged in the spring, and the spring is opposite in rotation direction to the inner spring.

[0011] Preferably, two upper and lower through holes are arranged in the mounting hole, the gear shaft comprises a gear body and an extension part connected to both ends of the gear body, a square part is integrally formed at the end of the extension part, the bearing part comprises a bearing cover fixedly arranged in the mounting hole, a shaft sleeve is rotatably connected in the bearing cover, the shaft sleeve is sleeved on the extension part, and the shaft sleeve abuts against the end surface of the gear body.

[0012] Preferably, a ring groove is arranged in the side surface of the mounting hole, a mounting groove is arranged in the curved surface of the ring groove, and a clamping spring is arranged in the mounting groove and pressed on the step of the outer curved surface of the bearing cover.

[0013] Preferably, the square part on the upper side is connected to the connecting rod assembly, and a cover is further arranged in the ring groove on the lower side.

[0014] Preferably, a groove is arranged in the end surface of the square part, and a friction column integrally formed on the bottom surface of the cover is inserted into the groove.

[0015] Preferably, the piston cylinder comprises a middle part and a head part connected to both ends of the middle part and attached to the wall surface of the channel, the diameter of the middle part is smaller than the diameter of the head part, and the accommodating groove is arranged in the middle part.

[0016] The utility model provides a modularization design easy to assemble's door closer has the following beneficial effects:

[0017] The utility model discloses a piston part, shaft body part and plug part are arranged in, easy to assemble, and through the modularization setting, easy to set up assembly line operation, to improve production efficiency, and the modularization setting is easy to disassemble, to be convenient for maintenance when the utility model is damaged or has the oil leakage, reduces the maintenance cost.

[0018] The utility model also is provided with the cover for shielding the shaft body part, and the cover can be installed directly by inserting the friction column into the gear shaft, and the operation is convenient. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram in the utility model;

[0020] Figure 2 It is the structure schematic diagram of the runner in the utility model;

[0021] Figure 3 It is Figure 1 The appearance schematic diagram of the piston cylinder in the utility model;

[0022] Figure 4is Figure 1 enlarged view of the middle A;

[0023] Figure 5 is Figure 1 exploded view of the shaft body component;

[0024] Figure 6 is a schematic view of the appearance of the utility model.

[0025] in the figure:

[0026] 11, housing; 12, fixed seat; 13, passage; 14, plug; 15, piston cylinder; 16, containing groove; 17, spring; 18, check valve; 19, mounting hole; 20, gear shaft; 21, inner spring; 22, bearing cover; 23, shaft sleeve; 24, clamping spring; 25, cover; 61, gear body; 62, extension; 63, square part; 64, groove; 71, No. 1 flow channel; 72, No. 2 flow channel; 81, middle part; 82, head; 91, piston component; 92, shaft body component; 93, plug component; 94, connecting rod assembly. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0028] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0029] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0030] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, the above terms can be understood according to the specific meaning in the utility model.

[0031] Referring to Figures 1-6 According to the embodiment of the utility model discloses a modular design easy-to-assemble door closer, including shell 11, the piston part 91, shaft body part 92 and plug part 93 are arranged in the shell 11, the shaft body part 92 is connected with fixed seat 12 by connecting rod assembly 94, the shell 11 is fixed on the door panel, and the fixed seat 12 is fixed on the wall surface, to realize the effect of automatic door closing of the door closer.

[0032] The shell 11 is provided with a left-right through channel 13, the plug part 93 includes a plug 14 arranged at the left and right ends of the channel 13 to close the channel 13, the plug 14 is threadedly connected to the two ends of the channel 13 to avoid falling under the action of oil pressure in the channel 13, and a sealing ring is arranged on the plug 14 to avoid oil leakage.

[0033] The piston part 91 includes a piston cylinder 15 slidably connected to the channel 13, the side surface of the channel 13 is provided with a flow channel, the piston cylinder 15 is provided with a receiving groove 16, and the receiving groove 16 is provided with a tooth surface on one side, the piston cylinder 15 is further connected to the plug 14 on the right side through a spring 17, and the left and right side surfaces of the receiving groove 16 are respectively provided with a through hole, and the through hole on the left side is provided with a one-way valve 18 flowing to the left.

[0034] The side surface of the channel 13 is provided with a vertically extending mounting hole 19, the shaft body part 92 includes a gear shaft 20 extending into the channel 13 through the mounting hole 19 and engaging with the tooth surface, and the gear shaft 20 is provided with a bearing member to enable it to rotate in the mounting hole 19.

[0035] Specifically, the flow channel includes a first flow channel 71 and a second flow channel 72, the inlet and outlet in the second flow channel 72 are arranged left and right, the inlet in the first flow channel 71 is between the inlet and outlet in the second flow channel 72, and the outlet in the first flow channel 71 is on the right side of the outlet in the second flow channel 72.

[0036] In order to save material and make the device lightweight, the piston cylinder 15 comprises an intermediate part 81 and a head part 82 connected to both ends of the intermediate part 81 and attached to the wall surface of the channel 13, the diameter of the intermediate part 81 is smaller than that of the head part 82, and the accommodating groove 16 is arranged in the intermediate part 81.

[0037] Specific workflow:

[0038] When the door panel is pushed, the gear shaft 20 is rotated through the connecting rod assembly 94, and the piston cylinder 15 is moved to the right through the tooth surface, in the process, the oil originally in the channel 13 on the right side of the piston cylinder 15 is pressed to the left side of the piston cylinder 15 through the through hole and the one-way valve 18.

[0039] When the door panel is no longer pushed, the piston cylinder 15 is reset to the left under the action of the spring 17, and the door panel is reset through the rotation of the gear shaft 20 and the connecting rod assembly 94, in the process of the movement of the piston cylinder 15 to the left, the oil on the left side of the piston cylinder 15 is blocked by the one-way valve 18, and can only flow into the accommodating groove 16 through the first flow channel 71 and then return to the right side of the piston cylinder 15 through the through hole on the right side.

[0040] When the head part 82 on the left side closes the entrance of the first flow channel 71, the outlet of the second flow channel 72 is opposite to the accommodating groove 16 at this time, and the remaining oil on the left side of the piston cylinder 15 is conducted to the right side of the piston cylinder 15 through the second flow channel 72.

[0041] It is additionally explained that the aperture of the second flow channel 72 needs to be smaller than that of the first flow channel 71, or the diameter of the blocking column in the second flow channel 72 is larger than that in the first flow channel 71, so that the flow in the second flow channel 72 is smaller than that in the first flow channel 71, and the effect of reducing the speed when the door is about to be closed is achieved.

[0042] In addition, in order to improve the running stability of the piston cylinder 15 when it is reset, the spring 17 is further provided with an inner spring 21, and the rotation directions of the spring 17 and the inner spring 21 are opposite.

[0043] The mounting hole 19 is provided with two through holes vertically, the gear shaft 20 comprises a gear body 61 and an extension part 62 connected to both ends of the gear body 61, the end of the extension part 62 is integrally formed with a square part 63, the bearing part comprises a bearing cover 22 fixedly arranged in the mounting hole 19, the bearing cover 22 is rotatably connected with a shaft sleeve 23, the shaft sleeve 23 is sleeved on the extension part 62, and the shaft sleeve 23 abuts against the end surface of the gear body 61.

[0044] Need to explain additionally, the shaft sleeve 23, the bearing cover 22, the extension 62 and the mounting hole 19 between through sealing ring or sealant leak-proof treatment, avoid oil leakage, this is prior art, now no longer elaborate.

[0045] And in order to facilitate the installation of the bearing cover 22, the side of the mounting hole 19 is provided with a ring groove, the curved surface of the ring groove is provided with a mounting groove, the mounting groove is provided with a snap spring 24, and the snap spring 24 is pressed on the step of the outer curved surface of the bearing cover 22.

[0046] The square part 63 on the upper side is connected to the connecting rod assembly 94, and in order to improve the appearance of the equipment, the ring groove on the lower side is also provided with a cover 25.

[0047] The mounting method of the cover 25 is that the end face of the square part 63 is provided with a groove 64, and the bottom surface of the cover 25 is integrally formed with a friction column inserted into the groove 64.

[0048] Assembly process:

[0049] First, the assembly of the piston part 91 is carried out: the staff inserts the one-way valve 18 into the piston cylinder 15, and then the piston cylinder 15 is installed in the channel 13.

[0050] Then, the assembly of the shaft body part 92 is carried out: the staff inserts the gear shaft 20 into the mounting hole 19, and then the remaining parts and the snap spring 24 are installed to fix the position of the gear shaft 20, and then the staff installs the spring 17 and the inner spring 21 into the channel 13 and presses them on the piston cylinder 15.

[0051] Then, the assembly of the plug part 93 is carried out: the staff tightens the plug 14 and fills the channel 13 with oil.

[0052] Need to explain additionally, the specific parts and assembly method of the connecting rod assembly 94 and the fixed seat 12 are mature solutions of prior art, and will not be elaborated here.

[0053] The above only describes specific embodiments of the present application, but the technical features of the present application are not limited to this. Any changes or modifications made by those skilled in the art in the field of the present application are covered by the patent scope of the present application.

Claims

1. A modularly designed and easily assembled door closer comprising a housing (11), characterized in that: The shell (11) is internally provided with a piston component (91), a shaft body component (92) and a plug component (93), the shaft body component (92) is connected with a fixed seat (12) through a connecting rod assembly (94); The shell (11) is internally provided with a left-right through channel (13), the plug component (93) comprises a plug (14) installed at the left and right ends of the channel (13) to close the channel (13); The piston component (91) comprises a piston cylinder (15) slidably connected in the channel (13), the side surface of the channel (13) is internally provided with a flow channel, the piston cylinder (15) is internally provided with a containing groove (16), one side of the containing groove (16) is processed with a tooth surface, the piston cylinder (15) is further connected with the plug (14) on the right side through a spring (17), the left and right side surfaces of the containing groove (16) are respectively provided with a through hole, and the through hole on the left side is internally provided with a one-way valve (18) for left flow. The side surface of the channel (13) is provided with a vertically extending mounting hole (19), the shaft body component (92) comprises a gear shaft (20) extending into the channel (13) through the mounting hole (19) and engaged with the tooth surface, and the gear shaft (20) is provided with a bearing member to enable it to rotate in the mounting hole (19).

2. A modularly designed and easily assembled door closer according to claim 1, characterized in that: The flow channel comprises a first flow channel (71) and a second flow channel (72), the inlet and outlet in the second flow channel (72) are arranged left and right, the inlet in the first flow channel (71) is between the inlet and outlet in the second flow channel (72), the outlet in the first flow channel (71) is on the right side of the outlet in the second flow channel (72), and the diameters of the first flow channel (71) and the second flow channel (72) are not the same.

3. A modularly designed and easily assembled door closer according to claim 1, characterized in that: The spring (17) is further provided with an inner spring (21), and the rotation directions of the spring (17) and the inner spring (21) are opposite.

4. The easily assembled door closer of modular design according to claim 1, characterized in that: The mounting hole (19) is provided with two upper and lower through holes, the gear shaft (20) comprises a gear body (61) and an extension (62) connected to both ends of the gear body (61), the end of the extension (62) is integrally formed with a square portion (63), the bearing member comprises a bearing cover (22) fixedly arranged in the mounting hole (19), the bearing cover (22) is rotatably connected with a shaft sleeve (23) arranged therein, the shaft sleeve (23) is sleeved on the extension (62), and the shaft sleeve (23) abuts against the end surface of the gear body (61).

5. A modularly designed and easily assembled door closer according to claim 4, characterized in that: The side surface of the mounting hole (19) is provided with an annular groove, the curved surface of the annular groove is provided with a mounting groove, the mounting groove is provided with a clamping spring (24), and the clamping spring (24) is pressed on the step of the outer curved surface of the bearing cover (22).

6. A modularly designed and easily assembled door closer according to claim 5, characterized in that: The square portion (63) on the upper side is connected to the connecting rod assembly (94), and the annular groove on the lower side is further provided with a cover (25).

7. A modularly designed and easily assembled door closer according to claim 6, characterized in that: The end surface of the square portion (63) is provided with a groove (64), and the bottom surface of the cover (25) is integrally formed with a friction column inserted into the groove (64).

8. A modularly designed and easily assembled door closer according to claim 1, characterized in that: The piston cylinder (15) comprises a middle part (81) and a head part (82) connected to both ends of the middle part (81) and attached to the wall of the passage (13), the diameter of the middle part (81) is smaller than the diameter of the head part (82), and the accommodating groove (16) is arranged in the middle part (81).

Images