TWM461680U - Adjustable door closer - Google Patents

Description

Adjustable door closer

The present invention relates to an additional product device dedicated to a swinging door piece; in particular, an innovative structural type designer of an adjustable door closer.

According to the so-called "closed door", it is generally assembled in the rotating bearing seat of the swinging actuating door piece, so as to achieve the function of controlling the closing speed of the door piece.

In view of the fact that the traditional door closer structure only uses the elastic force of the spring to control the closing speed of the door piece, and there are disadvantages such as excessive or insufficient resistance and lack of adjustable function, the following industry has developed an adjustable type of door closer structure. Corresponding; and the adjustable door closer is used to control the structural principle of the closing speed of the door piece. Generally speaking, the elastic force of the spring is used to match the return passage of the oil and the structural design of the throttle valve to penetrate the resistance of the oil. To achieve the function of adjusting the closing speed of the door.

However, the conventional structure design of the above-mentioned adjustable door closer still has its shortcomings and disadvantages. Here, the structure of the related adjustable door closer is described with reference to the drawings; please refer to Figures 1 to 3 A typical conventional adjustable door closer is mainly composed of a first cylinder chamber 11 and a second cylinder chamber 12 filled with oil in a hollow housing 10, the first and second cylinders One end of the chambers 11 and 12 is connected to an actuating groove 13 , and the actuating groove 13 is provided with a movable movable seat 14 and a driving shaft 15 driven by the door piece. The driving rotating shaft 15 is connected with a cam 16 for driving and rotating. The seat 14 generates a translational movement; the first cylinder chamber 11 is provided with a first piston 113 and a first spring 115. The first piston 113 is connected to the actuator seat 14 by a first connecting rod 116. The second cylinder chamber 12 is provided with a second piston 123 and a second spring 125. The second piston 123 is connected by a second connection. The rod 126 is connected to the actuating seat 14, whereby the displacement of the first and second pistons 113, 123 can be simultaneously pulled when the actuating seat 14 is translated, thereby compressing the first and second springs 115, 125 to accumulate elastic force; wherein the first piston 113 The end surface is provided with a one-way check valve 117; and the partition wall 17 between the first and second cylinder chambers 11, 12 is respectively provided with a first communication hole 21 and a second communication hole 22 to communicate with the first The second cylinder chambers 11 and 12, wherein a first regulating valve 213 is disposed at an intermediate position of the flow path of the first communicating passage 21, and a second regulating valve 223 is disposed at an intermediate position of the flow path of the second communicating passage 22 for adjusting The speed of the oil flowing in the first and second cylinder chambers 11 and 12 reaches a function of adjusting the closing speed of the door piece; wherein, the outer peripheral side of the first piston 113 is formed with a flat cutting surface 18 and the flat surface The cut surface 18 radially penetrates one of the through holes 180 in the first piston 113 to make the oil in the second cylinder chamber 12 Enough through the first communication channel 21, and the flat section 18 through the first orifice 180 flows to the piston 113 and the actuating groove 13.

However, it has been found that the above-mentioned conventional adjustable door closer is still found in practical applications. The partition wall 17 is provided with first and second communication holes 21 communicating with the first and second cylinder chambers 11, 12 in terms of manufacturing a processing surface. , 22 and the shape of the through hole 180, a total of five holes are formed in the first and second cylinder chambers 11, 12, and this part has a problem of increased processing cost and high defect rate due to too many holes; on the other hand, The flat cut surface 18 provided on the outer circumference of the first piston 113 must also be formed by secondary processing after the first piston 113 is formed. This portion also has a problem of increasing manufacturing cost; in addition, the first piston 113 and the second piston 123 Both end faces are closed-face type, so the embryo material must use solid metal materials, which will inevitably lead to an increase in material cost; comprehensively, the above description shows that the conventional adjustable door closer structure design still has manufacturing processing costs. Too high and not in line with the problems and shortcomings of better industrial economic benefits, it is clear that there is still room for innovation and thinking about breakthroughs.

Therefore, in view of the above-mentioned conventional adjustable door closers The problem is how to develop an innovative structure that can be more ideal and practical. It is waiting for the relevant industry to think about the goals and directions of breakthrough.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical and practical creation.

The main purpose of this creation is to provide an adjustable door closer, and the technical problem to be solved is to think about how to develop a new type of adjustable door closer structure that is more ideal and practical.

The technical feature of the present invention is mainly that the adjustable door closer comprises: a hollow housing, including a first cylinder chamber filled with oil inside, a second cylinder chamber, and communicating with the first and second a working slot at the same end of the cylinder chamber, a partition wall is formed between the first and second cylinder chambers; and an actuating device is disposed in the actuating slot, including an actuating seat and a driving shaft, wherein the driving shaft has a driven end protruding in the middle The outer part of the hollow shell, and the driving shaft is connected with a cam capable of rotating the driving seat to generate a translational movement; a first piston group is disposed in the first cylinder chamber, including the first piston head, the first connecting rod and the first a spring, the first piston head is reciprocally slidable in the first cylinder chamber, the first connecting rod is connected to the first piston head and the actuating seat, and the first spring is assembled on the first piston head and the predetermined stop of the actuating groove Between the stop faces; an axial through hole formed in the first piston head in an axial through-type, forming a central end of the first piston head in a penetrating manner; a second piston set, located in the The second cylinder chamber includes a second piston head, a second connecting rod and a second spring. The second piston head is reciprocally slidable in the second cylinder chamber, the second connecting rod is connected between the second piston head and the actuating seat, and the second spring group is disposed between the second piston head and the stopping limit surface of the actuating groove And a second check valve is internally provided with a check valve to control the flow of oil only from the actuating groove to the second cylinder chamber; a single laterally arranged resistance flow path unit is disposed on the partition wall, including along The partition wall extends in the direction of mutual orientation The return main channel and the return sub-channel of the interval configuration relationship are closed at the two ends of the return sub-channel, and the return main channel is closed at one end, the other end is connected to the actuating groove, and the single lateral direction of the main channel is recirculated by one The normally open communication hole is in communication with the second cylinder chamber, and the single side of the return sub passage is communicated with the second cylinder chamber by the first recirculation bypass hole and the second recirculation bypass hole disposed at intervals, and the second piston When the head is in the unactuated state, the second recirculation bypass hole is blocked and blocked; a first-stage regulating valve is disposed on the partition wall and corresponds to the path of the return sub-channel and the reflow main channel, and the first stage is adjusted. The adjustment position of the valve is between the return main passage and the first return bypass hole of the return sub passage; a second stage regulating valve is disposed on the partition wall and corresponds to the path of the return sub passage and the return main passage, and The adjustment position of the second stage regulating valve is between the return main passage and the second recirculation bypass hole of the return sub passage.

The main effects and advantages of this creation are that the adjustable door closer can achieve the practical improvement of better adjustment efficiency and better industrial economic benefits by greatly reducing the manufacturing and processing costs.

[study]

10‧‧‧ hollow housing

11‧‧‧First cylinder room

113‧‧‧First Piston

115‧‧‧First spring

116‧‧‧First connecting rod

117‧‧‧ one-way check valve

12‧‧‧Second cylinder room

123‧‧‧Second Piston

125‧‧‧Second spring

126‧‧‧second connecting rod

13‧‧‧ actuation slot

14‧‧‧Acoustic seat

15‧‧‧Drive shaft

16‧‧‧ cam

17‧‧‧ partition wall

18‧‧‧ flat cut

180‧‧‧through hole

19‧‧‧ Identification slot

21‧‧‧First connected tunnel

213‧‧‧First regulating valve

22‧‧‧Second connecting tunnel

223‧‧‧Second regulating valve

[this creation]

30‧‧‧ hollow housing

31‧‧‧First cylinder room

32‧‧‧Second cylinder room

33‧‧‧ actuation slot

34‧‧‧ partition wall

35‧‧‧stop limit surface

40‧‧‧Actuating device

41‧‧‧Acoustic seat

42‧‧‧Drive shaft

43‧‧‧Activity

44‧‧‧ cam

50‧‧‧First Piston Set

51‧‧‧First piston head

52‧‧‧first link

53‧‧‧First spring

54‧‧‧Axial through hole

60‧‧‧Second Piston Assembly

61‧‧‧Second piston head

62‧‧‧second connecting rod

63‧‧‧Second spring

64‧‧‧ check valve

70‧‧‧Single-sided configuration resistance flow path unit

71‧‧‧Return main channel

72‧‧‧Reflux secondary channel

73‧‧‧Normal open communication hole

74‧‧‧First recirculation bypass hole

75‧‧‧Second reflow bypass hole

81‧‧‧First stage regulating valve

82‧‧‧second adjustment

Figure 1 is a perspective view of a conventional structure (note: partial section and decomposition).

Figure 2 is a perspective view of the flow pattern of a conventional structure.

Figure 3 is a partial plan cross-sectional view of a conventional structure.

Figure 4 is a perspective view of a preferred embodiment of the present authoring structure (note: partial cross-section and decomposition).

Figure 5 is a transverse plan cross-sectional view of a preferred embodiment of the present authoring structure.

Figure 6 is a partial elevational cross-sectional view of a preferred embodiment of the present authoring structure.

Figure 7 is a cross-sectional view taken along line A-A of Figure 6.

Figure 8 is a three-dimensional simplified diagram of the flow pattern of the creation.

Figure 9 is a perspective view of the first and second piston heads of the present creation.

Figure 10 is a schematic diagram of the implementation of the creation of this creation.

Figure 11 is a schematic diagram of the implementation of this creation.

Figure 12 is a schematic diagram of the implementation of this creation.

Please refer to Figures 4 to 9 for a preferred embodiment of the present invention. However, these embodiments are for illustrative purposes only and are not limited by this structure in the patent application; The door closer includes a hollow housing 30 including a first cylinder chamber 31 filled with oil (not shown), a second cylinder chamber 32, and a first cylinder chamber 31, An operation slot 33 is formed at one end of the same end of the two cylinder chamber 32. A partition wall 34 is formed between the first cylinder chamber 31 and the second cylinder chamber 32. The actuating device 40 is disposed on the movable slot 33 of the hollow housing 30. The driving shaft 42 has a driven end 43 protruding from the outside of the hollow housing 30 (note: the driven end 43 is driven by the existing door), and is driven The rotating shaft 42 is connected with a cam 44 for rotating the driving base 41 to generate a translational movement; a first piston group 50 is disposed in the first cylinder chamber 31 of the hollow housing 30, and includes a first piston head 51 and a The first link 52 and a first spring 53 are configured, wherein the first piston head 51 is reciprocally slidable in the first cylinder chamber 31, first The connecting rod 52 is connected to the first piston head 51 and the actuating seat 41 of the actuating device 40. The first spring 53 is disposed on the first piston head 51 and a stopping limit surface 35 preset by the actuating groove 33. (only shown in Fig. 6); an axial through hole 54, the first piston head 51 formed in the first piston group 50 is in an axial through-type (as shown in Fig. 5), constituting the first The axial center of the piston head 51 is in a penetrating state for the free flow of oil; a second piston group 60 is disposed in the second cylinder chamber 32 of the hollow housing 30 and includes a second piston head. 61. A second link 62 and a second spring 63, wherein the second piston head 61 is reciprocally slidable in the second cylinder chamber 32, and the second link 62 is coupled to the second piston head 61. Actuating seat 41 of actuating device 40, second spring 63 is assembled to second piston head 61 and the aforementioned actuating groove 33 is provided with a stop limit surface 35 (only shown in FIG. 6); and a check valve 64 is disposed inside one end of the second piston head 61, so that the oil can only be controlled from the movable groove 33 to the first The two-cylinder chamber 32 flows in the direction of the opposite direction, and the reverse direction is in the closed state; a single laterally-disposed resistance flow path unit 70, the partition wall 34 formed between the first cylinder chamber 31 and the second cylinder chamber 32, includes along the partition wall 34 The partition wall is disposed in the extending direction of the return main channel 71 and the return sub-channel 72 in a spaced relationship, wherein the return sub-channel 72 is closed at both ends, and the return main channel 71 is closed at one end and the other end is connected to the actuating slot. 33. The single lateral direction of the return main channel 71 is communicated with the second cylinder chamber 32 by a normally open communication hole 73, and the first side of the return subchannel 72 is separated by a first recirculation. The bypass hole 74 and a second return bypass hole 75 communicate with the second cylinder chamber 32, and when the second piston head 61 is in an unactuated state, the second return bypass hole 75 is blocked and blocked; The first stage regulating valve 81 is disposed on the partition wall 34 and corresponds to the path of the return sub-passage 72 and the return main passage 71. And adjusting the adjustment position of the first stage regulating valve 81 between the return main passage 71 and the first return bypass hole 74 of the return sub-passage 72 (as shown in FIG. 6); The valve 82 is disposed on the partition wall 34 and corresponds to the path position of the return sub-passage 72 and the return main passage 71, and the adjustment position of the second-stage regulating valve 82 is between the reflow main passage 71 and the return sub-passage 72. The two are recirculated between the bypass holes 75 (as shown in Fig. 6).

With the above structural composition design, the operation of the adjustable door closer disclosed in the present application is explained as follows: As shown in Fig. 10, when the driven end 43 of the actuating seat 41 is combined with the cam 44 by the existing door (Fig. When not shown (as indicated by the arrow L1), the actuating seat 41 can be moved toward the left side in the figure (as indicated by the arrow L2), thereby forming the first and second piston heads 51, 61 is also synchronized in the first and second cylinder chambers 31, 32 to the left side of the figure (as indicated by arrow L3), during which the first spring 53 and the second spring 63 are compressed (eg, The arrow L4 shows) and the other side accumulates elasticity; the other side In the process of expanding the space volume of the first cylinder chamber 31 with the displacement of the first piston head 51, the oil in the actuation groove 33 will flow through the first piston head 51 through the axial through hole 54 into the first cylinder. In the space of the chamber 31 (as indicated by the arrow L5), and the space volume of the second cylinder chamber 32 is expanded in accordance with the displacement of the second piston head 61, the oil in the actuation groove 33 will pass through the check valve 64. Flowing through the second piston head 61 into the space of the second cylinder chamber 32 (as indicated by arrow L6); and when the actuator seat 41 is moved to the predetermined maximum stroke, the normally open one-way configuration resistance flow path unit 70 The communication hole 73, the first return bypass hole 74, the second return bypass hole 75 and the second cylinder chamber 32 are in a communicating state; then, as shown in FIG. 11, the adjustable door closer enters the automatic closing door. The action of the stage is illustrated. In this stage, the first and second piston heads 51, 61 are transformed in the first and second cylinder chambers 31 and 32 by utilizing the elastic releasing action of the first and second springs 53, 63. For the state of resetting to the right side in the figure (as indicated by arrow L7); during the resetting process of the first and second piston heads 51, 61, The flow path of the single laterally-disposed resistance flow path unit 70 is designed to achieve the purpose of slowing down the closing speed. Please refer to FIG. 11 , when the first and second piston heads 51 and 61 move in the reciprocating direction, The oil in the one cylinder chamber 31 is returned to the actuating groove 33 through the axial through hole 54 (as indicated by an arrow L8), and at this time, the check valve 64 is in a reverse state, so that the second cylinder chamber 32 The oil cannot pass through the check valve 64 to the actuating groove 33, and a part of the oil in the second cylinder chamber 32 is returned to the actuating groove 33 through the normally open communication hole 73 (as indicated by an arrow L9), the second cylinder Another portion of the oil in the chamber 32 can regulate the oil return flow rate through the opening and closing changes of the first and second return bypass holes 74, 75 and the flow regulating state of the first and second regulating valves 81, 82. As shown in FIG. 11, when the second piston head 61 moves in the reciprocating direction, the first recirculation bypass hole 74 is first blocked by the second piston head 61, and the second recirculation bypass hole 75 is often The open communication hole 73 is kept open, so that the oil in the second cylinder chamber 32 can be simultaneously returned to the second return bypass hole 75 and the normally open communication hole 73 to Groove 33 (Note: this part with fluid return path, please refer to the arrows of FIG. 6 LlO); continues with the reciprocating displacement of the second piston head 61, will over a period of a first, The second recirculation bypass holes 74, 75 are all blocked by the blocking process, and then reach the state in which only the second recirculation bypass hole 75 is blocked by the blockage shown in Fig. 12; the actuation changes of Figs. 10 to 12 are revealed. Since the length of the return path of the oil changes, and the pre-flow adjustment of the first and second regulating valves 81, 82 is matched, the adjustable door closer can be used in two stages (such as fast and slow). Features and effects.

Efficacy description:

1. According to the technical features of the single lateral configuration resistance flow path unit, the holes to be opened in the first and second cylinder chambers can be reduced to only three, that is, normally open communication holes, A recirculation bypass hole and a second recirculation bypass hole, and the three holes are only connected to the second cylinder chamber by the partition wall, and are not connected to the first cylinder chamber, so the flow path structure is much simpler than the conventional one (Note: It is customary to have five through holes), which can achieve the advantages of reducing manufacturing costs and non-performing rates.

2. The present invention is characterized in that the first piston head of the first piston set is provided with an axial through hole, and the axial center of the first piston head is formed in a penetrating manner, so that it is not required to use a solid billet in manufacturing. It is only necessary to use hollow pipe material, which can achieve the advantages of reducing material cost and manufacturing cost.

3. The outer circumference of the second piston head of the present invention does not need to be further processed to form the flat cut surface 18 required by the conventional structure (see FIGS. 1 and 3), and the advantage of reducing the manufacturing cost can be achieved.

The disclosures of the above embodiments are used to specifically explain the present creation, and although the descriptions are made through specific terms, the scope of patents of the novel creation cannot be limited thereby; those skilled in the art can understand the spirit of the creation. Changes and modifications are made to the equivalent purpose, and such changes and modifications are to be included in the scope defined by the scope of the patent application as described later.

30‧‧‧ hollow housing

31‧‧‧First cylinder room

32‧‧‧Second cylinder room

33‧‧‧ actuation slot

34‧‧‧ partition wall

40‧‧‧Actuating device

41‧‧‧Acoustic seat

42‧‧‧Drive shaft

43‧‧‧Activity

44‧‧‧ cam

50‧‧‧First Piston Set

51‧‧‧First piston head

52‧‧‧first link

53‧‧‧First spring

54‧‧‧Axial through hole

60‧‧‧Second Piston Assembly

61‧‧‧Second piston head

62‧‧‧second connecting rod

63‧‧‧Second spring

64‧‧‧ check valve

70‧‧‧Single-sided configuration resistance flow path unit

71‧‧‧Return main channel

72‧‧‧Reflux secondary channel

73‧‧‧Normal open communication hole

74‧‧‧First recirculation bypass hole

75‧‧‧Second reflow bypass hole

81‧‧‧First stage regulating valve

82‧‧‧Second stage regulating valve

Claims (1)

An adjustable door closer includes: a hollow housing, including a first cylinder chamber filled with oil inside, a second cylinder chamber, and an actuation groove communicating with the same end of the first cylinder chamber and the second cylinder chamber a partition wall is formed between the first cylinder chamber and the second cylinder chamber; the actuating device is disposed in the actuating slot of the hollow housing, and comprises an actuating base and a driving shaft, wherein the driving shaft has a driven end convex Extending on the outside of the hollow housing, and the driving shaft is connected with a cam to drive the actuator to generate translational motion; a first piston group is disposed in the first cylinder chamber of the hollow housing, including a first piston a head, a first link and a first spring, wherein the first piston head is reciprocally slidable in the first cylinder chamber, and the first link is connected to actuate the first piston head and the actuating device a first spring is disposed between the first piston head and a stop limit surface preset by the actuating groove; an axial through hole formed in the first piston head of the first piston group is axially penetrated a type that constitutes a penetrating shape of the axial center of the first piston head a state in which the oil is freely circulated; a second piston group is disposed in the second cylinder chamber of the hollow housing, and includes a second piston head, a second connecting rod and a second spring, wherein the second piston The piston head system is reciprocally slidable in the second cylinder chamber, the second link is connected to the second piston head and the actuating seat of the actuating device, and the second The spring is disposed between the second piston head and the stop limit surface of the actuating groove; and a check valve is disposed at one end of the second piston head to control the oil to be self-moving a two-cylinder chamber flows in the opposite direction; the reverse direction is a closed state; a single laterally-disposed resistance flow path unit, a partition wall formed between the first cylinder chamber and the second cylinder chamber, including a direction along the partition wall The return main channel and the return sub-channel are arranged and arranged to each other, wherein the return sub-channels are closed at both ends, and the reflow main channel is closed at one end and the other end is connected to the actuating groove, and the return main channel is located at one end. The single lateral direction communicates with the second cylinder chamber through a normally open communication hole, and the single side of the return subchannel is separated by a first recirculation bypass hole and a second recirculation bypass hole and a second The cylinder chamber is connected, and when the first piston head is in an unactuated state, the second return bypass hole is blocked and blocked; a first stage regulating valve is disposed on the partition wall and corresponds to the return subchannel and the return main The path location of the channel, and the first segment The adjustment position of the throttle valve is between the return flow main passage and the first return bypass hole of the return flow passage; a second-stage regulating valve is disposed on the partition wall and corresponds to the path position of the return flow passage and the return main passage. And adjusting the adjustment position of the second stage regulating valve between the return main passage and the second return bypass hole of the return sub passage.