Cement stabilized macadam base end construction template

Abstract

The utility model discloses a cement stabilized macadam base end construction formwork which comprises a formwork component, a supporting component and a telescopic component, the supporting component is hinged to the formwork component, one end of the telescopic component is fixedly connected with the formwork component, the other end of the telescopic component is connected with the supporting component in a sliding mode, and the telescopic component can be fixed in a telescopic mode. According to the scheme that the vertical plate is hinged to the inclined supporting plate and the telescopic component can stretch out and draw back and be fixed, the angle between the vertical plate and the ground is adjusted, the connection requirement of the first road surface and the second road surface is met, meanwhile, the cement stabilized macadam base layer is isolated from the outside through the thin film, the water evaporation time of the poured road surface is prolonged, and the service life is prolonged. And a better maintenance effect is achieved on the protected pavement.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal road engineering technical field, especially a cement stabilized macadam base end construction template. BACKGROUND

[0002] Cement stabilized macadam base is the mixture formed by adding a certain dose of cement in the gravel or gravel aggregate with a certain gradation, and the pavement base formed after paving and rolling. This base has the advantages of simple construction process, convenient material source, high strength, good water stability, good integrity, etc., and is particularly suitable for use in industrial cities.

[0003] Patent No. CN218911050U discloses a cement stabilized macadam base construction template, which can ensure the connection strength of the cement stabilized macadam base joint, but the technical scheme at least includes the following problems:

[0004] Problem 1: The traditional cement stabilized macadam base construction template cannot pour the transition slope of the first pavement and the second pavement under the premise of not being cut, and reduces the construction efficiency;

[0005] Problem 2: The traditional cement stabilized macadam base construction template cannot realize the isolation of the cement stabilized macadam base and the external environment, and cannot provide suitable conditions for the maintenance of the cement stabilized macadam base. UTILITY MODEL CONTENT

[0006] The technical problem to be solved by the utility model is the technical problem mentioned in the background.

[0007] In order to solve the above technical problems, the utility model provides a cement stabilized macadam base end construction template, the template part includes a vertical plate and a lower support plate, the bottom of the vertical plate is hinged to the lower support plate, a support plate hole is arranged on the lower support plate, and a support fixing screw is matched with the support plate hole;

[0008] It also includes a support part, the support part includes an inclined support plate, a fixed part is hinged to the upper end of the inclined support plate, the fixed part is fixedly connected with one side of the vertical plate, a horizontal fixed plate is hinged to the lower end of the inclined support plate, a fixed hole is arranged on the horizontal fixed plate, and a fixed screw is matched with the fixed hole;

[0009] It also includes a telescopic part, one end of the telescopic part is fixedly connected with the template part, and the other end of the telescopic part is slidingly connected with the support part.

[0010] The bottom of the vertical plate is hinged to the lower support plate, the lower support plate is provided with a support plate hole, and a support fixing screw is matched with the support plate hole, so that the lower support plate is in horizontal contact with the ground and can be fixed above the ground through the cooperation of the support plate hole and the support fixing screw;

[0011] The upper end of the inclined support plate is hinged to a fixing member, the fixing member is fixedly connected to one side of the vertical plate, the lower end of the inclined support plate is hinged to a horizontal fixing plate, the horizontal fixing plate is provided with a fixing hole in the inside, and a fixing screw is matched with the fixing hole, so that the angle between the inclined support plate and the vertical plate can be adjusted, the construction formwork can meet more working conditions, the construction formwork can cooperate with the pouring of the first road surface and the second road surface, and the inclined support plate can be fixed above the ground through the cooperation of the fixing hole and the fixing screw;

[0012] The one end of the telescopic part is fixedly connected to the formwork part, the other end of the telescopic part is slidingly connected to the support part, the telescopic part can be telescopically fixed, the support part can be telescopically adjusted to cooperate with the angle between the vertical plate and the ground, and the support part can be fixed, so that the working strength of the construction formwork is ensured and the angle between the vertical plate and the ground is kept unchanged during the working process.

[0013] Further, the inclined support plate is provided with a sliding groove, a sliding block is slidingly connected in the sliding groove, the support part comprises a support base, a support sleeve, a support sleeve rod and a second hinge member, the support base is fixedly connected to one side of the vertical plate, the support sleeve is limited in the inside of the support base, the support sleeve rod is telescopically relative to the support sleeve, the second hinge member is arranged on the end of the support sleeve rod away from the support sleeve, the second hinge member is hinged to the sliding block, the support sleeve rotates in the support base, the end of the support sleeve rod is provided with external threads, the inside of the support sleeve is provided with internal threads, and the external threads and the internal threads are matched.

[0014] The inclined support plate is provided with a sliding groove, and a sliding block is slidingly connected in the sliding groove, so that the sliding of the support sleeve rod on the inclined support plate is realized, and the problem that the device is stuck and the angle of the vertical plate cannot be adjusted is avoided, the support sleeve rotates in the support base, the end of the support sleeve rod is provided with external threads, the inside of the support sleeve is provided with internal threads, and the external threads and the internal threads are matched.

[0015] Further, the inclined support plate is provided with a sliding groove, and further comprises a hinge base, a threaded rod and a nut, the hinge base is fixedly installed on one side of the vertical plate, the threaded rod is hinged to the hinge base, the threaded rod penetrates through the sliding groove, and the nut is matched and installed on the threaded rod.

[0016] The hinged seat is fixedly installed on one side of the vertical plate, the threaded rod is hinged with the hinged seat, the threaded rod penetrates through the sliding groove, and the threaded rod is provided with a nut in cooperation.

[0017] Further, the vertical plate is provided with a connecting piece on the side surface, adjacent vertical plates are connected through the connecting piece, and a limiting piece is further installed between adjacent vertical plates.

[0018] The vertical plate is provided with a connecting piece on the side surface, adjacent vertical plates are connected through the connecting piece, and a limiting piece is further installed between adjacent vertical plates.

[0019] Further, the connecting piece is provided with a connecting hole, a connecting nut is installed on one side of the connecting piece, a connecting screw rod is installed on the other side of the connecting piece, and the connecting nut and the connecting screw rod are matched.

[0020] The connecting piece is provided with a connecting hole, a connecting nut is installed on one side of the connecting piece, a connecting screw rod is installed on the other side of the connecting piece, and the connecting nut and the connecting screw rod are matched.

[0021] Further, it further comprises a first hinge piece, and the inclined supporting plate and the horizontal fixed plate are hinged through the first hinge piece.

[0022] The inclined supporting plate and the horizontal fixed plate are hinged through the first hinge piece, which is used to ensure the horizontal contact of the inclined supporting plate with the ground and ensure the stable connection of the inclined supporting plate with the ground.

[0023] Further, the inclined supporting plate is provided with a plurality of fixed plates.

[0024] The inclined supporting plate is provided with a plurality of fixed plates, which ensures the working strength of the inclined supporting plate and avoids the collapse of the construction formwork caused by the increase of pressure on the other side of the vertical plate.

[0025] Further, the formwork component further comprises an upper supporting plate, the upper supporting plate is fixedly installed above the vertical plate, a film box is installed at the top end of the upper supporting plate, and the film box stores a film.

[0026] The upper supporting plate is fixedly installed above the vertical plate, a film box is installed at the top end of the upper supporting plate, and the film box stores a film, which can control the moisture of the pouring surface to prolong the evaporation time of the moisture, promote the strength development of the concrete, and keep the moisture of the pouring surface during curing.

[0027] Further, the film box is internally provided with a film rod, the film is wound on the film rod, the film box is provided with a knob on the side, and the knob is fixedly connected with the film rod.

[0028] The film box is internally provided with a film rod, the film is wound on the film rod, the film box is provided with a knob on the side, and the knob is fixedly connected with the film rod.

[0029] Further, the other end of the film is connected with a film connector.

[0030] The other end of the film is connected with a film connector, and the film is made of high-toughness material, so that the film is prevented from being damaged during use, the water control on the surface of the poured pavement is not complete, and the maintenance effect is poor.

[0031] Further, the construction formwork is moved to the side of the to-be-poured pavement, the position of the construction formwork is adjusted, the vertical plate is flush with the side of the to-be-poured pavement, the angle of the vertical plate with the ground is adjusted by rotating the supporting sleeve or adjusting the position of the threaded rod and the nut, the vertical plate is vertically arranged by cooperating with the plumb bob, the position of the vertical plate is fixed by cooperating the supporting fixed screw with the supporting plate hole arranged on the lower supporting plate, the inclined supporting plate is fixed by cooperating the fixed screw with the fixing hole arranged on the horizontal fixing plate, the placement position of other construction formworks is determined by the limiting piece, adjacent construction formworks are connected by the connecting piece, the construction formwork is arranged on the other side of the to-be-poured pavement by the same operation steps, then the cement stabilized macadam base is poured into the inside of the corresponding construction formwork, the film is released by rotating the knob arranged on the top side of the film box, the film connector is moved until the film connectors on the two sides are fixedly connected, then the pouring surface is isolated from the external environment, the water evaporation time of the poured pavement is prolonged, and suitable pouring pavement maintenance conditions are provided.

[0032] Further, when the connecting slope of the first pavement and the second pavement needs to be poured, the construction formwork is moved to the side of the to-be-poured pavement, the angle of the vertical plate with the ground is adjusted by rotating the supporting sleeve or adjusting the position of the threaded rod and the nut, so as to cooperate with the inclination angle of the connecting slope, the position of the vertical plate is fixed by cooperating the supporting fixed screw with the supporting plate hole arranged on the lower supporting plate, the inclined supporting plate is fixed by cooperating the fixed screw with the fixing hole arranged on the horizontal fixing plate, the placement position of other construction formworks is determined by the limiting piece, adjacent construction formworks are connected by the connecting piece, then the cement stabilized macadam base is poured into the inside of the corresponding construction formwork, the film is released by rotating the knob arranged on the top side of the film box, the film connector is moved until the film connectors on the two sides are fixedly connected, then the pouring surface is isolated from the external environment, the water evaporation time of the poured pavement is prolonged, and suitable pouring pavement maintenance conditions are provided.

[0033] The utility model discloses beneficial effect is:

[0034] 1, the scheme of hinged between inclined support plate and riser, through the hinge between fixed part and inclined support plate, the position of inclined support plate is invariable, and the riser is rotated to change the angle between riser and ground, thereby the pouring of the excessive slope of first road surface and second road surface is carried out, and the connection of first road surface and second road surface is provided, and the height difference of first road surface and second road surface prevents the traffic inconvenience of pedestrian's vehicle;

[0035] 2, the scheme of film, through the film above the pouring surface, the isolation of pouring surface and outside environment can be realized, the moisture of pouring surface is controlled to reduce the evaporation of moisture, promote the strength development of concrete, and keep the moisture of pouring surface during maintenance;

[0036] 3, the scheme of telescopic part, adopt the effect of scheme one, and the telescopic part is used for the accurate adjustment of the angle between riser and inclined support plate, and the cooperation of riser, inclined support plate and telescopic part makes the construction formwork more stable, and the scheme of internal and external thread cooperation plays the fixed locking effect to construction formwork simultaneously, prevents the collapse of construction formwork caused by the excessive pressure on the other side of riser;

[0037] 4, the scheme of telescopic part, adopt the effect of scheme two, and the telescopic part is used for the accurate adjustment of the angle between riser and inclined support plate, and the cooperation of riser, inclined support plate and telescopic part makes the construction formwork more stable, and the scheme of screw rod and nut cooperation plays the fixed locking effect to construction formwork simultaneously, prevents the collapse of construction formwork caused by the excessive pressure on the other side of riser;

[0038] 5, the scheme of connecting piece and limiting plate, through the cooperation of connecting nut and connecting screw rod, the quick disassembly and assembly of adjacent riser are realized, through the installation of limiting plate, the quick alignment of adjacent riser is realized, prevents the position deviation between adjacent riser to cause the problem of low construction quality. ACCURACY

[0039] Figure 1 It is the structural schematic diagram of the utility model;

[0040] Figure 2 It is the side view of the template embodiment two of the utility model;

[0041] Figure 3 It is the schematic diagram of the template installation embodiment two of the utility model road surface transition;

[0042] Figure 4 It is the schematic diagram of the connection between the template of the utility model;

[0043] Figure 5 It is the schematic diagram of the film under the state of unfolding;

[0044] Figure 6 is the internal structure diagram of the film box of the utility model;

[0045] Figure 7 is the internal structure diagram of the second embodiment of the utility model telescopic component;

[0046] Figure 8 is the side view of the third embodiment of the utility model novel formwork;

[0047] Figure 9 is the schematic diagram of the third embodiment of the utility model formwork installation of road surface transition.

[0048] Wherein: 1, vertical plate; 2, upper support plate; 3, lower support plate; 31, support plate hole; 32, support fixing screw; 4, inclined support plate; 41, fixing part; 42, fixed plate; 43, horizontal fixed plate; 44, fixed hole; 45, fixed screw; 46, first hinged part; 5, telescopic component; 51, support seat; 52, support sleeve; 53, support sleeve rod; 54, second hinged part; 55, hinged seat; 56, threaded rod; 57, nut; 6, connecting part; 61, connecting hole; 62, connecting nut; 63, connecting screw; 7, film box; 71, knob; 72, film joint; 73, film rod; 74, film; 8, limiting part. DETAILED DESCRIPTION

[0049] The embodiment of the utility model will be described in detail below with the help of drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the utility model can be fully understood and implemented.

[0050] Example one

[0051] As Figures 1 to 9 shown, a kind of cement stabilized macadam base end construction formwork, including formwork component, the formwork component includes vertical plate 1 and lower support plate 3, the bottom of vertical plate 1 is hinged with lower support plate 3, support plate hole 31 is provided on lower support plate 3, support plate hole 31 is matched with support fixing screw 32;

[0052] Also include support component, the support component includes inclined support plate 4, the upper end of inclined support plate 4 is hinged with fixing part 41, the fixing part 41 is fixedly connected with one side of vertical plate 1, the lower end of inclined support plate 4 is hinged with horizontal fixed plate 43, fixed hole 44 is provided on horizontal fixed plate 43, fixed hole 44 is matched with fixed screw 45;

[0053] Also include telescopic component 5, one end of telescopic component 5 is fixedly connected formwork component, the other end of telescopic component 5 is slidably connected support component.

[0054] Example two

[0055] As Figures 1 to 7 shown in one of the cement stabilized macadam base end construction templates, on the basis of example one, the inclined support plate 4 is provided with a sliding groove, the sliding groove is connected with a sliding block, the support part includes a support seat 51, a support sleeve 52, a support sleeve rod 53 and a second hinge 54, the support seat 51 is fixedly connected with one side of the vertical plate 1, the support sleeve 52 is limited in the inside of the support seat 51, the support sleeve rod 53 is telescopic relative to the support sleeve 52, the end of the support sleeve rod 53 away from the support sleeve 52 is connected with the second hinge 54, the second hinge 54 is hinged with the sliding block, the support sleeve 52 can rotate in the support seat 51, one end of the support sleeve rod 53 is provided with external thread, the inside of the support sleeve 52 is provided with internal thread, the external thread and the internal thread are matched;

[0056] The side of the vertical plate 1 is provided with a connecting piece 6, the adjacent vertical plates 1 are connected through the connecting piece 6, the adjacent vertical plates 1 are also provided with a limiting piece 8;

[0057] The connecting piece 6 is provided with a connecting hole 61, one side of the connecting piece 6 is provided with a connecting nut 62, the other side of the connecting piece 6 is provided with a connecting screw rod 63, the connecting nut 62 and the connecting screw rod 63 are matched;

[0058] It also includes a first hinge 46, the inclined support plate 4 is hinged with the horizontal fixed plate 43 through the first hinge 46;

[0059] The inclined support plate 4 is provided with two, the two inclined support plates 4 are provided with a fixed plate 42;

[0060] The template part also includes an upper support plate 2, the upper support plate 2 is fixedly installed above the vertical plate 1, the top end of the upper support plate 2 is provided with a film box 7, the film box 7 stores a film 74;

[0061] The film box 7 is internally provided with a film rod 73, the film 74 is wound on the film rod 73, the side of the film box 7 is provided with a knob 71, the knob 71 is fixedly connected with the film rod 73;

[0062] The other end of the film 74 is connected with a film joint 72, the film 74 is made of high toughness material.

[0063] Example three

[0064] As Figure 1 , Figures 4 to 6 , Figures 8 to 9The cement stabilized macadam base end construction template shown in the embodiment four is different from the embodiment two in that the inclined support plate 4 is provided with a sliding groove, and further comprises a hinged seat 55, a threaded rod 56 and a nut 57, the hinged seat 55 is fixedly installed on one side of the vertical plate 1, the threaded rod 56 is hinged with the hinged seat 55, the threaded rod 56 penetrates through the sliding groove, and the nut 57 is cooperatively installed on the threaded rod 56.

[0065] Embodiment four

[0066] As Figures 1 to 9 shown in a cement stabilized macadam base end construction template, the principle is that the construction template is moved to the side of the to-be-poured road surface, the position of the construction template is adjusted, the vertical plate 1 is flush with the side of the to-be-poured road surface, the angle of the vertical plate 1 and the ground is adjusted by rotating the support sleeve 52 or adjusting the position of the threaded rod 56 and the nut 57, the vertical plate 1 is vertically arranged by cooperating with the lead hammer, the position of the vertical plate 1 is fixed by the cooperation of the support fixing screw 32 and the support plate hole 31 provided on the lower support plate 3, the inclined support plate 4 is fixed by the cooperation of the fixing screw 54 and the fixing hole provided on the horizontal fixing plate 43, the placement position of other construction templates is determined by the limiting piece 8, the adjacent construction templates are connected by the connecting piece 6, other construction templates are arranged on the other side of the to-be-poured road surface by the same operation steps, then the cement stabilized macadam base is poured into the corresponding construction template, the film 74 is released by rotating the knob 71 provided on the top side of the film box 7, the film joint 72 is moved until the film joints 72 on both sides are fixedly connected, thereby prolonging the evaporation time of the moisture of the poured road surface, providing suitable pouring road surface maintenance conditions, after the construction is completed, the film 74 is recovered into the film box 7 by reversing the knob, the connecting nut 62, the connecting screw rod 63, the support fixing screw 32 and the fixing screw 45 are removed, and the construction template is recovered.

[0067] Embodiment five

[0068] As Figures 1 to 9The principle of the illustrated cement stabilized macadam base end construction form is as follows: when the connecting slope of the first pavement and the second pavement needs to be poured, the construction form is moved to the side of the pavement to be poured, the angle of the vertical plate 1 with the ground is adjusted by rotating the supporting sleeve 52 or adjusting the position of the threaded rod 56 and the nut 57 to connect the slope angle, the position of the vertical plate 1 is fixed by the cooperation of the supporting fixing screw 32 and the supporting plate hole 31 provided on the lower supporting plate 3, the inclined supporting plate 4 is fixed by the cooperation of the fixing screw 54 and the fixing hole provided on the horizontal fixing plate 43, the placement position of other construction forms is determined by the limiting piece 8, the adjacent construction forms are connected by the connecting piece 6, then the cement stabilized macadam base is poured into the corresponding construction form, the film 74 is released by rotating the knob 71 provided on the top side of the film box 7, the film joint 72 is moved until the film joints 72 on both sides are fixedly connected, thereby prolonging the water evaporation time of the poured pavement, providing suitable pouring pavement maintenance conditions, after the construction is completed, the film 74 is recovered into the film box 7 by reversing the knob, the connecting nut 62, the connecting screw rod 63, the supporting fixing screw 32 and the fixing screw 45 are removed, and the construction form is recovered.

[0069] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A formwork for construction of a cement stabilized macadam base end, characterized in that: The template component includes a vertical plate (1) and a lower support plate (3), the bottom of the vertical plate (1) is hinged to the lower support plate (3), and the lower support plate (3) is provided with a support plate hole (31), and the support plate hole (31) is matched with a support fixing screw (32); The support component includes an inclined support plate (4), the upper end of the inclined support plate (4) is hinged to a fixing piece (41), the fixing piece (41) is fixedly connected to one side of the vertical plate (1), and the lower end of the inclined support plate (4) is hinged to a horizontal fixing plate (43), the horizontal fixing plate (43) is provided with a fixing hole (44), and the fixing hole (44) is matched with a fixing screw (45); The telescopic component (5) is fixedly connected to the template component at one end and slidably connected to the support component at the other end.

2. The construction formwork for cement stabilized macadam base end according to claim 1, characterized in that: The inclined support plate (4) is provided with a sliding groove, and a sliding block is slidably connected in the sliding groove, the support component includes a support seat (51), a support sleeve (52), a support sleeve rod (53) and a second hinge piece (54), the support seat (51) is fixedly connected to one side of the vertical plate (1), the support sleeve (52) is limited in the inside of the support seat (51), the support sleeve rod (53) is telescopic relative to the support sleeve (52), the second hinge piece (54) is connected to one end of the support sleeve rod (53) away from the support sleeve (52), the second hinge piece (54) is hinged to the sliding block, the support sleeve (52) can rotate in the support seat (51), one end of the support sleeve rod (53) is provided with external threads, the inside of the support sleeve (52) is provided with internal threads, and the external threads and the internal threads are matched.

3. The construction formwork for cement stabilized macadam base end according to claim 1, characterized in that: The inclined support plate (4) is provided with a sliding groove, and a sliding block is slidably connected in the sliding groove, the support component includes a support seat (51), a support sleeve (52), a support sleeve rod (53) and a second hinge piece (54), the support seat (51) is fixedly connected to one side of the vertical plate (1), the support sleeve (52) is limited in the inside of the support seat (51), the support sleeve rod (53) is telescopic relative to the support sleeve (52), the second hinge piece (54) is connected to one end of the support sleeve rod (53) away from the support sleeve (52), the second hinge piece (54) is hinged to the sliding block, the support sleeve (52) can rotate in the support seat (51), one end of the support sleeve rod (53) is provided with external threads, the inside of the support sleeve (52) is provided with internal threads, and the external threads and the internal threads are matched.

4. The construction form for cement stabilized macadam base end according to claim 1, characterized in that: The inclined support plate (4) is provided with a sliding groove, and a sliding block is slidably connected in the sliding groove, the support component includes a support seat (51), a support sleeve (52), a support sleeve rod (53) and a second hinge piece (54), the support seat (51) is fixedly connected to one side of the vertical plate (1), the support sleeve (52) is limited in the inside of the support seat (51), the support sleeve rod (53) is telescopic relative to the support sleeve (52), the second hinge piece (54) is connected to one end of the support sleeve rod (53) away from the support sleeve (52), the second hinge piece (54) is hinged to the sliding block, the support sleeve (52) can rotate in the support seat (51), one end of the support sleeve rod (53) is provided with external threads, the inside of the support sleeve (52) is provided with internal threads, and the external threads and the internal threads are matched.

5. The construction form for cement stabilized macadam base end according to claim 4, characterized in that: The vertical plate (1) is provided with a connecting piece (6) on the side, adjacent vertical plates (1) are connected through the connecting piece (6), and a limiting piece (8) is further installed between adjacent vertical plates (1).

6. The construction form for cement stabilized macadam base end according to claim 1, characterized in that: The connecting piece (6) is provided with a connecting hole (61), a connecting nut (62) is installed on one side of the connecting piece (6), a connecting screw rod (63) is installed on the other side of the connecting piece (6), and the connecting nut (62) and the connecting screw rod (63) are matched.

7. The construction form for cement stabilized macadam base end according to claim 1, characterized in that: The inclined support plate (4) is hinged to the horizontal fixing plate (43) through the first hinge piece (46).

8. The construction formwork for cement stabilized macadam base end according to claim 1, characterized in that: A plurality of inclined support plates (4) are provided, and a fixing plate (42) is installed between the plurality of inclined support plates (4). The template component further includes an upper support plate (2), the upper support plate (2) is fixedly installed above the vertical plate (1), a film box (7) is installed at the top end of the upper support plate (2), and the film box (7) stores a film (74) inside.

9. The construction formwork for cement stabilized macadam base end according to claim 8, characterized in that: The film box (7) is internally provided with a film rod (73), the film (74) is wound on the film rod (73), and the film box (7) is provided with a knob (71) on the side, wherein the knob (71) is fixedly connected with the film rod (73).

10. The construction formwork for cement stabilized macadam base end according to claim 9, characterized in that: The other end of the film (74) is connected with a film joint (72).

Images