Fire bowl with removable housing

Abstract

Fire bowl with removable housing, including: a case (100); an insert (300) which is located in the housing (100); a grid (400) located at the bottom of the insert (300); characterized by the fact that the housing (100) comprises several splice plates (115), wherein the several splice plates (115) are surrounded in a ring shape at an outer position away from an outer wall of the insert (300), such that a spacer is provided between an inner surface of each splice plate (115) and the outer wall of the insert (300), and wherein side sections of each pair of adjacent splice plates (115) are arranged to interlock with each other.

Description

TECHNICAL AREA

[0001] The present utility model belongs to the technical field of fire bowls, and in particular relates to a fire bowl with a removable housing. TECHNICAL BACKGROUND

[0002] A fire bowl is one of the most frequently used devices in situations such as outdoor warmth, garden leisure, al fresco dining, and the like. The core function of a fire bowl is to hold combustible materials such as charcoal, firewood, and the like, and to utilize the heat generated by combustion for purposes such as heating, warming objects, and so forth. An important component of the fire bowl is the casing, which primarily serves to protect the fuel and insulate against high temperatures to prevent burns, while simultaneously fulfilling the dual function of both aesthetic decoration and securing the fuel.A grid is arranged at the bottom of the insert and is a core component for carrying combustion materials and supporting ventilation, with a recess formed by a depression in a central part of the grid effectively preventing combustion materials from falling out, thus ensuring safety during use of the fire bowl.

[0003] For a fire bowl with a removable housing, the core design requirements include ease of disassembly, strength of assembly, adequate heat dissipation, safe use, and adaptability to outdoor scenarios. This involves not only reducing volume through disassembly to facilitate transport and storage, but also ensuring the overall structure remains stable after the housing is reassembled. Simultaneously, efficient heat dissipation must be achieved through appropriate structural design to prevent excessively high surface temperatures of the housing from posing safety risks.However, conventional fire bowls with removable housings have significant shortcomings in terms of the housing's structural design, making it difficult to simultaneously meet the aforementioned core design requirements, with the specific problems being as follows: Firstly, conventional fire bowl enclosures typically use an integrated, fixed structure that cannot be disassembled, resulting in a large footprint during transport, difficulty in flexible setup during storage, and a lack of adaptability to different scenarios. Some detachable enclosures use a simple assembly structure without a reliable locking mechanism between splice plates, and the connection is achieved solely through bolting or simple overlapping. Disassembly requires specialized tools, resulting in a cumbersome process, and repeated disassembly can lead to loosening upon reassembly, compromising the overall stability of the fire bowl structure.Secondly, conventional fire bowl enclosures are usually positioned close to the outer wall of the insert, without adequate clearance. This means that the high temperature generated by combustion in the insert is directed straight onto the enclosure surface, causing a significant temperature increase and potentially leading to accidental scalding of the user. Simultaneously, the lack of clearance prevents effective heat dissipation, and the long-term accumulation of high temperatures can not only accelerate the aging and deformation of the enclosure material but also ignite flammable objects in the vicinity. This is particularly unsuitable for crowded outdoor environments, where safety risks are significant.

[0004] Thirdly, conventional removable fire bowls either lack a dedicated locking mechanism between their splice plates, or the design of such a mechanism is inadequate. This results in the side sections of adjacent plates fitting too tightly or too loosely, preventing a stable connection. When used outdoors, the splice plates, under the influence of external forces such as wind or collisions, tend to loosen, shift, or even detach. This not only compromises the overall stability of the fire bowl structure but can also lead to displacement of the insert and spillage of combustion materials, further increasing the risk of accidents.

[0005] Fourth, existing panel designs for spliced ​​enclosures are monotonous, resulting in a rigid overall shape and insufficient aesthetics after assembly, making it difficult to meet the decorative needs of scenarios such as gardens, outdoor leisure areas, and the like; at the same time, some joining structures sacrifice ease of disassembly for high connection strength, while other structures result in a loose overall structure for improved ease of disassembly, thus failing to achieve a balance between practicality and aesthetics and requiring improvement in market competitiveness.

[0006] DETAILED DESCRIPTION To achieve the above-mentioned objectives, this utility model adopts the following technical solution: A fire bowl with a removable housing, comprising: a case; an insert that is arranged in the housing; a grid that is arranged on one side of the base of the insert; wherein the housing comprises several splice plates, wherein the several splice plates are surrounded in a ring shape at an outer position away from an outer wall of the insert, such that a spacer is provided between the inner surface of each splice plate and the outer wall of the insert, and wherein side sections of each pair of adjacent splice plates are arranged to interlock with each other.

[0007] Furthermore, a central part of the grid is recessed downwards to form a recess for receiving combustion materials; wherein an inclusion angle is present between the inner surfaces of each pair of adjacent splice plates, the inclusion angle being an obtuse angle.

[0008] Furthermore, a first connection section and a second connection section are formed on opposite side sections of each splice plate, wherein when connecting two adjacent splice plates the first connection section is locked onto the second connection section to form a connection.

[0009] Furthermore, the first connecting section comprises a locking groove, wherein the second connecting section comprises a locking section that is compatible with the locking groove, wherein a locking projection and a locking hole are formed on both the locking groove and the locking section, and wherein the locking section engages in the locking groove so that the locking projection is locked in the locking hole.

[0010] Furthermore, the first connection section comprises a first connecting plate, a first locking plate and a second locking plate, wherein the first connecting plate is formed on a side section of the splice plate, wherein the first locking plate is connected to the first connecting plate, wherein the second locking plate is connected to the first locking plate, and wherein the first locking plate is located between the first connecting plate and the second locking plate to form the locking groove, wherein the locking hole is formed on the first locking plate, the second locking plate or a connection point between the first locking plate and the second locking plate.Furthermore, the second connection section comprises a second connection plate, wherein the second connection plate is formed on the other side section of the splice plate, wherein the locking section is a third locking plate connected to the second connection plate, wherein the third locking plate is arranged extending in the direction of the first connection section, and wherein the locking projection is arranged on the third locking plate.

[0011] Furthermore, a first through-hole is arranged on the third locking plate, wherein a second through-hole is arranged on the first locking plate, and wherein the first through-hole and the second through-hole are aligned when the first connecting section engages the second connecting section.

[0012] Furthermore, the first connecting section and the second connecting section are arranged at an inclination on each splice plate, and the first connecting section and the second connecting section have the same inclination direction.

[0013] Furthermore, the splice plate comprises a first splice surface and a second splice surface, wherein the first splice surface and the second splice surface are arranged adjacently, and wherein a plane in which the first splice surface is located and a plane in which the second splice surface is located intersect at a specified angle to form an airflow guiding surface on an inner wall of the housing, wherein the specified angle is an obtuse angle.

[0014] Furthermore, both the first connecting surface and the second connecting surface have a triangular structure, with the triangular structure of the first connecting surface and the triangular structure of the second connecting surface being inverses of each other.

[0015] The advantageous aspects of the present utility model are that: The housing is assembled using multiple splice plates, with side sections of adjacent splice plates interlocking. This replaces conventional integrated fixed structures or simple joining structures, allowing assembly and disassembly without the need for special tools, resulting in a simple and efficient operating process. Simultaneously, the splice plates can be stored separately after disassembly, significantly reducing the overall volume, space requirements during transport, and allowing for flexible storage. This effectively solves the problems of conventional fire bowls regarding cumbersome transport, difficult storage, and a lack of adaptability to different scenarios, thereby improving the product's portability and scenario adaptability.

[0016] Several splice plates are surrounded in a ring shape at an outer position away from the outer wall of the insert, so that the spacing space is formed between the inner surfaces of the splice plates and the outer wall of the insert, with this structural design completely solving the deficiency of conventional enclosures that fit tightly against an insert, thus preventing effective heat dissipation.The high temperature generated by combustion during use creates air convection through the space between the fire bowls, ensuring efficient heat dissipation. This prevents high temperatures from being directed onto the housing surface, which would cause a significant temperature increase and effectively prevents accidental scalding of the user. Simultaneously, it reduces the effects of aging and deformation on the housing material caused by the accumulation of high temperatures, thus minimizing the risk of igniting flammable objects in the vicinity. This significantly improves safety during use of the fire bowl and makes it suitable for outdoor scenarios with high occupancy.

[0017] The side sections of each pair of adjacent splice plates are interlocked to form a reliable connection structure. This eliminates the shortcomings of conventional structures without a dedicated interlocking mechanism or with an inadequate interlocking design, effectively preventing the problem of adjacent plates being too tight or too loose. During outdoor use, the splice plates can effectively withstand external forces such as wind, collisions, and the like, preventing loosening, displacement, or falling off, thus ensuring the overall stability of the enclosure structure. Simultaneously, safety risks such as displacement of the insert and spillage of combustion materials caused by plate detachment are avoided, further enhancing the safety and reliability of the fire bowl's use.

[0018] The assembly structure of multiple splice plates allows for flexible adjustment of a number of splice plates based on the dimensions of an insert to meet the installation needs of inserts with varying specifications, thus overcoming the shortcomings of conventional housing structures due to their poor adaptability. Simultaneously, the overall shape, formed by the ring-shaped surround of the splice plates, is regular and aesthetically pleasing. Compared to the rigid shapes of conventional assembly structures, this design better meets the decorative needs of scenarios such as gardens, outdoor recreation areas, and the like, thereby achieving a balance between practicality and aesthetics and effectively improving the product's competitiveness in the market. DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a schematic structural view of the fire bowl in an embodiment of the present utility model. Fig. 2 is a sectional view of the Fig. 1 Fire bowl shown in the exemplary embodiment. Fig. Figure 3 is a schematic view of the splice plate in an embodiment of the present utility model. Fig. 4 is a schematic connection view of the in Fig. 3 splice plate shown in the embodiment. Fig. Figure 5 is an enlarged view at point A in Fig. 4. Fig. 6 is a sectional view from below of the in Fig. 1 Fire bowl shown in the exemplary embodiment. Fig. Figure 7 is an enlarged view at point B in Fig. 6.

[0019] The meanings of the reference symbols are as follows: 100, housing; 101, first connecting surface; 102, second connecting surface; 103, first connecting plate; 104, first locking plate; 105, second locking plate; 106, second through-hole; 107, locking hole; 108, second connecting plate; 109, third locking plate; 110, locking projection; 111, first through-hole; 112, first retaining plate; 113, second retaining plate; 114, third through-hole; 115, splice plate; 116, inclusion angle; 117, first connecting section; 118, second connecting section; 119, locking groove; 120, locking section; 200, top cover; 300, insert; 400, grid; 401, recess; 500, ash tray; 600, bottom wall; 601, air intake slot. SPECIFIC EXECUTION FORMS

[0020] The present disclosure is explained in detail below with reference to the drawings and in combination with exemplary embodiments.

[0021] As in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig.As shown in Figure 6, a fire bowl with removable housing comprises a housing 100, an insert 300, a grate 400, an ash pan 500, a base wall 600 and a top cover 200.

[0022] The insert 300 is arranged in the housing 100 to block the escape of flames; the grid 400 is arranged on a base of the insert 300, with a central part of the grid 400 being recessed downwards to form a recess 401 for receiving combustion materials; the ash tray 500 is arranged below the grid 400 to collect ash produced on the grid 400; the bottom wall 600 is connected to the base of the housing 100, with several air inlet slots 601 being arranged on the bottom wall 600; The upper cover 200 is arranged on the top of the housing in a spliced ​​construction and, together with the bottom wall 600, secures the housing 100. The bottom wall 600 and the upper cover 200 each define and secure the bottom and top of the housing 100 respectively and interact with a snap-fit ​​connection section to further ensure the stability of the overall housing structure.The insert 300 is made of a high-temperature resistant material, effectively blocking direct contact between the flames and the housing. This prevents damage from high temperatures and also prevents flames from escaping and causing safety hazards. A design where the central part of the grate 400 is recessed downwards to form the recess 401 allows for the concentrated collection of combustible materials such as charcoal, firewood, and the like. This results in more complete combustion and concentrated heat release, enhancing heating and grilling performance. The ash pan 500 is conveniently positioned to collect ash produced after combustion, preventing it from scattering onto the bottom of the fire bowl, which is difficult to clean, thus keeping the interior of the fire bowl clean.The air intake slots 601 on the bottom wall 600 provide sufficient oxygen for combustion and promote combustion efficiency. The top cover 200 not only secures the housing but also prevents sparks from escaping to some extent and can be removed as needed, making it convenient to add fuel or perform grilling operations.

[0023] The housing 100 comprises several splice plates 115, wherein the several splice plates 115 are surrounded in a ring shape at an outer position away from an outer wall of the insert 300, such that a spacer is provided between an inner surface of each splice plate 115 and the outer wall of the insert 300, and wherein side sections of each pair of adjacent splice plates 115 are arranged to interlock with each other, such that an inclusion angle 116 is provided between the inner surfaces of each pair of adjacent splice plates 115, wherein the inclusion angle 116 is an obtuse angle, whereby the splice plates 115 form a cylindrical housing structure after being joined together.

[0024] Furthermore, on opposite side sections of each splice plate 115, a first connection section 117 and a second connection section 118 are formed, wherein when two adjacent splice plates 115 are joined, the first connection section 117 snaps onto the second connection section 118 to form a connection. A snap-fit ​​design of the first connection section 117 and the second connection section 118 enables tool-free quick assembly, whereby a user only needs to align the first connection section 117 of an adjacent splice plate 115 with the second connection section 118 and apply appropriate pressure to complete the snap-fit. Disassembly can be achieved by applying force in the opposite direction, which is convenient and efficient.

[0025] The first connecting section 117 comprises a locking groove 119, wherein the second connecting section 118 comprises a locking section 120 that fits into the locking groove 119, wherein a locking projection 110 and a locking hole 107 are each formed on the locking groove 119 and wherein the locking section 120 engages in the locking groove 119 such that the locking projection 110 is engaged in the locking hole 107. When the locking section 120 is inserted into the locking groove 119, the locking projection 110 can be precisely embedded in the locking hole 107 to form a longitudinal positioning, thereby further limiting a relative displacement of adjacent splice plates 115 in the vertical direction, which, together with a transverse positioning, achieves a multidimensional fixation of the connecting section, thereby significantly improving the vibration resistance of the assembly structure.Furthermore, a close interaction between the detent projection 110 and the detent hole 107 can effectively prevent the connection section from loosening during use, in order to ensure structural stability of the housing 100 under complex operating conditions such as high-temperature baking and outdoor use.

[0026] Furthermore, the first connecting section 117 comprises a first connecting plate 103, a first locking plate 104 and a second locking plate 105, wherein the first connecting plate 103 is formed on a side section of the splice plate 115, wherein the first locking plate 104 is connected to the first connecting plate 103, wherein the second locking plate 105 is connected to the first locking plate 104, and wherein the first locking plate 104 is located between the first connecting plate 103 and the second locking plate 105 to form the locking groove 119, wherein the locking hole 107 is formed on the first locking plate 104, the second locking plate 105 or a connection point between the first locking plate 104 and the second locking plate 105.The second connecting section 118 further comprises a second connecting plate 108, wherein the second connecting plate 108 is formed on the other side section of the splice plate 115, wherein the locking section 120 is a third locking plate 109 which is connected to the second connecting plate 108, wherein the third locking plate 109 is arranged extending in the direction of the first connecting section 117, and wherein the locking projection 110 is arranged on the third locking plate 109.

[0027] The first locking plate 104 is perpendicularly connected to an inner edge of the first connecting plate 103, with the second locking plate 105 extending parallel to the first connecting plate 103 and from a free end of the first locking plate 104 in a direction away from the first connecting plate 103, whereby the first connecting plate 103, the first locking plate 104, and the second locking plate 105 together enclose and form the locking groove 119, which has a "C"-shaped cross-section. The locking hole 107 can be provided at a central position of the first locking plate 104, wherein the shape of the locking hole 107 is to match the locking projection 110 and can, for example, be a round or square through hole.The second connecting plate 108 is formed on the other side section of the splice plate 115 and is adapted to the thickness and height of the first connecting plate 103. The third locking plate 109 is connected perpendicularly to an inner edge of the second connecting plate 108, the length of which is slightly less than the depth of the locking groove 119 to allow smooth insertion into the locking groove 119. The locking projection 110 is formed integrally on an outer surface of the third locking plate 109 and is positioned according to the location of the locking hole 107. The height of the locking projection 110 is slightly less than the depth of the locking hole 107 to ensure that a stable locking connection can be formed after engagement.When two adjacent splice plates 115 are joined, the third locking plate 109 of one splice plate 115 is aligned with an opening of the locking groove 119 of another splice plate 115 and pushed in horizontally; at this point, the locking projection 110 on the third locking plate 109 comes into contact with the first locking plate 104 or the second locking plate 105 in the locking groove 119 and creates a slight elastic deformation; when the locking projection 110 reaches the position of the locking hole 107, the locking projection 110 is embedded in the locking hole 107 under the influence of the elastic restoring force of the material itself to achieve a reliable locking of adjacent splice plates 115.

[0028] Furthermore, a first through-hole 111 is arranged on the third locking plate 109, wherein a second through-hole 106 is arranged on the first locking plate 104, and wherein the first through-hole 111 and the second through-hole 106 are aligned when the first connecting section 117 engages the second connecting section 118. The arrangement of the first through-hole 111 and the second through-hole 106 allows for the insertion of an auxiliary connecting element such as a pin or a snap lock to further increase resistance to the pulling out of the connecting section, thereby meeting structural reliability requirements in specific scenarios.

[0029] It is worth noting that the first connecting section 117 and the second connecting section 118 are arranged at an angle on each splice plate 115, and that the first connecting section 117 and the second connecting section 118 have the same direction of inclination. This design results in the preset obtuse inclusion angle 116 being formed naturally between the inner surfaces of the splice plates 115 after adjacent splice plates 115 are locked together, without the need for any additional angle adjustment, thus simplifying the assembly process.Specifically, the inclination angle of the first connecting section 117 and the second connecting section 118 is adapted to the obtuse angle to be formed by the inner surfaces of the splice plates 115. When adjacent splice plates 115 are locked together by the first connecting section 117 and the second connecting section 118, a major portion of the splice plate 115 inclines according to the preset angle, thus forming a stable obtuse angle between adjacent inner surfaces. Such an integrated design not only guarantees precision of the inclusion angle 116 but also avoids problems of structural instability due to improper angle setting during the assembly process.

[0030] A first retaining plate 112 is arranged at one end of a first connecting surface 101, and a second retaining plate 113 is arranged at one end of a second connecting surface 102, the first retaining plate 112 and the second retaining plate 113 being located on a top and bottom, respectively, of the splice plate 115; the first connecting plate 103, the second connecting plate 108, the first retaining plate 112, and the second retaining plate 113 forming a connecting space on the splice plate 115, this connecting space being able to enclose and confine the first connecting section 117 and the second connecting section 118 after a snap-fit, in order to prevent external collisions or vibrations from causing accidental release of the connecting section, while at the same time exerting a certain protective effect on the connecting section to reduce direct contact of dust and water vapor with the connecting structure.A third through-hole 114 is provided on both the first retaining plate 112 and the second retaining plate 113, the third through-hole 114 being used to guide a fastening element through it; when several splice plates 115 are successively interlocked to form a main housing body, a fastening element can be used that passes through the third through-holes 114 on the first retaining plate 112 and the second retaining plate 113 to provide fixation, the fastening element being a pin, a screw or the like, thereby further fixing the entire housing structure in an axial direction, which interacts with the transverse and longitudinal positioning of the interlocking section 120 to form an all-round stable connection system, ensuring that the fire bowl housing does not suffer any disintegration or deformation during transport or use.

[0031] Furthermore, the splice plate 115 comprises the first connection surface 101 and the second connection surface 102, wherein the first connection surface 101 and the second connection surface 102 are arranged adjacently, and wherein a plane in which the first connection surface 101 is located and a plane in which the second connection surface 102 is located intersect at a specified angle to form an airflow-guiding guide surface on an inner wall of the housing, thereby assisting combustion of the flames through the guide surface to form secondary combustion, thus making a flame state more stable; wherein the specified angle is an obtuse angle.By arranging the first connecting surface 101 and the second connecting surface 102, the connecting surfaces of adjacent splice plates 115 form a three-dimensional synergistic structure instead of a simple planar contact, which effectively improves the overall stability after joining.

[0032] Preferably, both the first connecting surface 101 and the second connecting surface 102 have a triangular structure, wherein the triangular structure of the first connecting surface 101 and the triangular structure of the second connecting surface 102 are inverses of each other; such a design allows the splice plates 115 to form a complementary geometric shape when joined, thereby further enhancing the tightness and stability of the connection. The triangular structure itself exhibits good stability, can distribute an external force evenly after assembly, and improve the overall resistance to deformation of the housing.

[0033] The above description merely presents some preferred embodiments of the present disclosure and an explanation of the applied technical principles. The person skilled in the art should understand that the scope of the present utility model involved in the embodiments of the present disclosure is not limited to technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features, without departing from the above-mentioned concept of the utility model. For example, technical solutions formed by mutually substituting the above-mentioned features with technical features having similar functions (but not limited to those) disclosed in the embodiments of the present disclosure.

Claims

Fire bowl with removable housing, comprising: a housing (100); an insert (300) located in the housing (100); a grid (400) located at the bottom of the insert (300); characterized in that the housing (100) comprises several splice plates (115), wherein the several splice plates (115) are surrounded in a ring shape at an outer position away from an outer wall of the insert (300), such that a space is provided between an inner surface of each splice plate (115) and the outer wall of the insert (300), and wherein side sections of each pair of adjacent splice plates (115) are arranged to interlock with each other. Fire bowl according to claim 1, characterized in that a central part of the grid (400) is recessed downwards to form a recess (401) for receiving combustion materials; and that an inclusion angle (116) is provided between the inner surfaces of each two adjacent splice plates (115), wherein the inclusion angle (116) is an obtuse angle. Fire bowl according to claim 1, characterized in that a first connecting section (117) and a second connecting section (118) are formed on opposite side sections of each splice plate (115), wherein when connecting two adjacent splice plates (115) the first connecting section (117) is latched onto the second connecting section (118) to form a connection. Fire bowl according to claim 3, characterized in that the first connecting section (117) comprises a locking groove (119), wherein the second connecting section (118) comprises a locking section (120) that is compatible with the locking groove (119), wherein a locking projection (110) and a locking hole (107) are formed on the locking groove (119) and the locking section (120), and wherein the locking section (120) engages in the locking groove (119) so that the locking projection (110) is locked in the locking hole (107). Fire bowl according to claim 4, characterized in that the first connecting section (117) further comprises a first connecting plate (103), a first locking plate (104) and a second locking plate (105), wherein the first connecting plate (103) is formed on a side section of the splice plate (115), wherein the first locking plate (104) is connected to the first connecting plate (103), wherein the second locking plate (105) is connected to the first locking plate (104), and wherein the first locking plate (104) is located between the first connecting plate (103) and the second locking plate (105) to form the locking groove (119), wherein the locking hole (107) is formed on the first locking plate (104), the second locking plate (105) or a connection point between the first locking plate (104) and the second locking plate (105). Fire bowl according to claim 5, characterized in that the second connecting section (118) further comprises a second connecting plate (108), wherein the second connecting plate (108) is formed on the other side section of the splice plate (115), wherein the locking section (120) is a third locking plate (109) which is connected to the second connecting plate (108), wherein the third locking plate (109) is arranged extending in the direction of the first connecting section (117), and wherein the locking projection (110) is arranged on the third locking plate (109). Fire bowl according to claim 6, characterized in that a first through hole (111) is arranged on the third locking plate (109), wherein a second through hole (106) is arranged on the first locking plate (104), and wherein the first through hole (111) and the second through hole (106) are aligned with each other when the first connecting section (117) engages the second connecting section (118). Fire bowl according to one of claims 3 to 7, characterized in that the first connecting section (117) and the second connecting section (118) are arranged inclined on each splice plate (115), and wherein the first connecting section (117) and the second connecting section (118) have the same direction of inclination. Fire bowl according to claim 1, characterized in that the splice plate (115) comprises a first connecting surface (101) and a second connecting surface (102), wherein the first connecting surface (101) and the second connecting surface (102) are arranged adjacently, and wherein a plane in which the first connecting surface (101) is located and a plane in which the second connecting surface (102) is located intersect at a specified angle to form an airflow guiding surface on an inner wall of the housing (100); wherein the specified angle is an obtuse angle. Fire bowl according to claim 9, characterized in that both the first connecting surface (101) and the second connecting surface (102) have a triangular structure, and wherein the triangular structure of the first connecting surface (101) and the triangular structure of the second connecting surface (102) are inversely related to each other.

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