Tree supporting equipment for forestry protection

Abstract

The invention is applicable to the technical field of forestry protection, and provides tree supporting equipment for forestry protection, which comprises a movable supporting main body, a rack plate and a static supporting main body are mounted on the movable supporting main body, the movable supporting main body is used for enclosing and supporting trees, a second supporting assembly is further mounted on the movable supporting main body, and a first supporting assembly is arranged on the static supporting main body and used for supporting the trees. Through cooperation of the first supporting assembly and the second supporting assembly, a tree is supported, along with growth of the tree, the clamping plates adjust the positions through the supporting rods and the positioning springs, the clamping plates are attached to the tree all the time, indentations caused to branches and trunks of the tree during growth of the tree are avoided, and in strong wind weather, the tree is prevented from being damaged. The supporting rod is limited under one condition through the limiting mechanism, the supporting rod is limited under the other condition through mutual cooperation of the movable magnet and the static magnet, the moving stroke of the supporting rod is limited through the two modes, the large shaking amplitude of the tree is avoided, and the stability of supporting and fixing the tree is better.

Description

Technical Field

[0001] The invention belongs to the technical field of forestry protection, and in particular relates to a tree supporting device for forestry protection. Background Art

[0002] Forestry refers to protecting the ecological environment and maintaining ecological balance, cultivating and protecting forests to obtain timber and other forest products, and utilizing the natural characteristics of forests to play a protective role. Trees can improve the quality of the environment on which human beings depend for survival. Trees and green plants continuously carry out photosynthesis, consume carbon dioxide and produce fresh oxygen. More than 60% of the oxygen in the air comes from trees and green plants on land, so people compare trees and green plants to "oxygen factories" and "fresh air processing plants". Many trees can secrete bactericides to kill various pathogens in the air; they can also absorb toxic gases emitted by industrial production, retain smoke and dust that pollute the atmosphere, and eliminate noise pollution that is harmful to humans. Newly transplanted trees need to be supported so that they are perpendicular to the ground to prevent them from falling over.

[0003] In the prior art, multiple wooden sticks are fixed to the trunk of a tree by using hemp ropes, iron wires or bandages to support and fix the tree.

[0004] Artificial binding of hemp ropes and iron wires may become loose, causing wooden sticks to fall. Since the supporting wooden sticks are mostly made of wood, they may carry pests and diseases (such as termites), which will threaten the health of the trees. The sticks are easily affected by moisture and decay, which will also affect the support of the trees. Summary of the Invention

[0005] The purpose of the present invention is to provide a tree support device for forestry protection, which aims to solve the problem that artificially bound hemp ropes and iron wires may become loose and cause wooden sticks to fall. Since the supporting wooden sticks are mostly made of wood, the wooden sticks may carry pests and diseases (such as termites), which will threaten the health of the trees. The wooden sticks are easily affected by moisture and decay, which will also affect the support of the trees.

[0006] The present invention is achieved by providing a tree support device for forestry protection, comprising:

[0007] A dynamic support body, on which a rack plate and a static support body are mounted, for enclosing and supporting the tree, and a second support assembly is also mounted on the dynamic support body;

[0008] The first support assembly is provided on the static support body and is used to press and fix the tree. The first support assembly includes:

[0009] A support box is fixedly mounted on the static support body, wherein a positioning rod and a positioning spring are fixedly mounted in the support box;

[0010] The support rod is slidably matched with the support box, the static support body and the positioning rod. The axial end of the support rod is fixedly mounted with a clamping plate. The free end of the support rod is also fixedly connected to the positioning spring for limiting the support rod.

[0011] The limiting mechanism is arranged in the support box and is used to limit the moving stroke of the support rod.

[0012] As a further solution of the present invention, a push plate is fixedly installed on the outer wall surface of the support rod, and a fixing groove is provided on the outer wall surface of the support rod close to the push plate. Several of the fixing grooves are equidistantly distributed in the length direction of the support rod, and a dynamic magnet is fixedly installed on the outer wall surface of the support rod close to the other side of the push plate. A static magnet is also fixedly installed on the inner wall surface of the support box for magnetically cooperating with the dynamic magnet.

[0013] As a further solution of the present invention, the limiting mechanism includes:

[0014] The limiting shaft is rotatably engaged with the supporting box;

[0015] The pressing plate is fixedly installed on one side of the limit shaft and is used to cooperate with the push plate to drive the limit shaft to rotate;

[0016] The transmission plate is fixedly mounted on the other side of the limiting shaft and is used to cooperate with the fixing groove to limit the support rod;

[0017] The support column is fixedly installed on the support box and is used to provide limited support for the transmission plate.

[0018] As a further solution of the present invention, a sealing assembly is further included, which is provided on the static support body and is used to limit and fix the dynamic support body and the static support body. The sealing assembly includes:

[0019] A limit gear is fixedly mounted on the first mounting shaft, the limit gear is rotatably engaged with the static support body via the first mounting shaft, and the limit gear is also meshedly connected with the rack plate;

[0020] The rotating shaft is rotatably engaged with the static support body on the side close to the limiting gear;

[0021] The limit baffle is fixedly mounted on the end face of the rotating shaft and is used to limit the rotation of the limit gear;

[0022] A reset plate, fixedly mounted on the free end of the rotating shaft, for resetting the limit stopper;

[0023] The limiting rod is rotatably engaged with the static support body and is used to limit the rotation of the limiting baffle.

[0024] As a further solution of the present invention, the number of the sealing assemblies is two groups symmetrically distributed along the central axis of the static support body, and the number of the rack plates is two groups symmetrically distributed along the central axis of the dynamic support body.

[0025] As a further solution of the present invention, the structure of the second support assembly is the same as that of the first support assembly, and the second support assembly cooperates with the first support assembly to support and fix the tree.

[0026] As a further solution of the present invention, an adjustment assembly is further included, wherein one of the three adjustment assemblies is arranged on the dynamic support body, and the other two of the three adjustment assemblies are arranged on the static support body, for supporting and positioning the dynamic support body and the static support body, and the adjustment assembly includes:

[0027] The main fixed leg is rotatably engaged with the dynamic support body;

[0028] The main adjusting leg is slidably fitted on the main fixed leg and is used to adjust the height of the main fixed leg;

[0029] A fixing frame is rotatably engaged with the main adjustment leg, and a fixing cone is fixedly mounted on the end surface of the fixing frame for positioning the fixing frame;

[0030] The auxiliary fixed leg is rotatably engaged with the main fixed leg;

[0031] The auxiliary adjusting leg is slidably fitted on the auxiliary fixing leg and is used to adjust the height of the auxiliary fixing leg.

[0032] As a further solution of the present invention, the outer wall surface of the main fixed leg is rotatably engaged with a first fixing pin, and the first fixing pin is also rotatably engaged with the main adjusting leg through the main fixed leg. A number of adjustment holes are evenly distributed in the height direction of the main adjusting leg for adjusting the length of the main adjusting leg. The outer wall surface of the secondary fixed leg is rotatably engaged with a second fixing pin, and the second fixing pin is rotatably engaged with the secondary fixed leg through the secondary adjusting leg. A number of adjustment holes are evenly distributed in the height direction of the secondary adjusting leg for adjusting the height of the secondary adjusting leg. A positioning cone is fixedly installed on the end face of the secondary adjusting leg.

[0033] 1. The present invention provides a tree support device for forestry protection, which supports trees through the cooperation of a first support assembly and a second support assembly. As the tree grows, the clamping plate adjusts its position through a support rod and a positioning spring, and always fits the tree to avoid indentations on the branches of the tree as the tree grows. In addition, when encountering strong winds, the limiting mechanism limits the support rod in one situation, and the dynamic magnet and the static magnet cooperate with each other to limit the support rod in another situation. These two methods limit the travel of the support rod, avoid large swings of the tree, and provide better stability for the tree support and fixation.

[0034] 2. The present invention provides a tree support device for forestry protection, which fixes the dynamic support body and the static support body through the arrangement of a rack plate and a sealing assembly, making the connection more firm, and preventing the dynamic support body and the static support body from loosening and falling when the tree support is fixed. In addition, the device is easy to install and has high efficiency in supporting trees.

[0035] 3. The present invention provides a tree support device for forestry protection, which can adjust the support heights for different trees by adjusting the components, thereby improving the stability of the tree support. At the same time, the auxiliary fixed legs and the auxiliary adjustable legs can also support the main fixed legs and the main adjustable legs, further increasing the stability of the tree support and making the tree support more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional schematic diagram of a tree support device for forestry protection provided by an embodiment of the present invention;

[0037] Figure 2 A bottom perspective view of a tree support device for forestry protection provided by an embodiment of the present invention;

[0038] Figure 3 A partial cross-sectional view of a support assembly of a tree support device for forestry protection provided by an embodiment of the present invention;

[0039] Figure 4 A tree support device for forestry protection provided by an embodiment of the present invention Figure 3 Enlarged view of point A in the middle;

[0040] Figure 5 A partial structural diagram of a sealing assembly and an adjustment assembly of a tree support device for forestry protection provided by an embodiment of the present invention;

[0041] Figure 6 A tree support device for forestry protection provided by an embodiment of the present invention Figure 5 Enlarged view of point B in the middle.

[0042] In the accompanying drawings: 1. Dynamic support body; 11. Rack plate; 2. Static support body; 3. First support assembly; 31. Support box; 32. Support rod; 321. Fixed groove; 322. Push plate; 323. Moving magnet; 33. Clamping plate; 34. Positioning rod; 35. Positioning spring; 36. Limiting mechanism; 361. Limiting shaft; 362. Pressing plate; 363. Transmission plate; 364. Support column; 37. Static magnet; 4. Sealing assembly; 41. Limiting gear; 42. Rotating shaft; 43. Limiting baffle; 44. Reset plate; 45. Limiting rod; 5. Adjusting assembly; 51. Main fixed leg; 511. First fixing pin; 52. Main adjusting leg; 53. Fixed frame; 54. Fixed cone; 55. Auxiliary fixed leg; 551. Second fixing pin; 56. Auxiliary adjusting leg; 6. Second support assembly. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] It will be understood that the terms "first" and "second" used in this application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

[0045] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0046] like Figures 1 to 6 As shown, a tree support device for forestry protection provided by one embodiment of the present invention includes:

[0047] A dynamic support body 1 is mounted with a rack plate 11 and a static support body 2 for enclosing and supporting trees. A second support assembly 6 is also mounted on the dynamic support body 1;

[0048] The first support assembly 3 is provided on the static support body 2 and is used to press and fix the tree. The first support assembly 3 includes:

[0049] The support box 31 is fixedly mounted on the static support body 2, and a positioning rod 34 and a positioning spring 35 are fixedly mounted in the support box 31;

[0050] The support rod 32 is slidably engaged with the support box 31, the static support body 2 and the positioning rod 34. The axial end of the support rod 32 is fixedly mounted with a clamping plate 33. The free end of the support rod 32 is also fixedly connected to a positioning spring 35 for limiting the position of the support rod 32.

[0051] The limiting mechanism 36 is provided in the support box 31 and is used to limit the movement stroke of the support rod 32;

[0052] Specifically, as a further embodiment of the present invention, a push plate 322 is fixedly mounted on the outer wall surface of the support rod 32, a fixing groove 321 is opened on the outer wall surface of the support rod 32 on the side close to the push plate 322, and a plurality of fixing grooves 321 are evenly distributed along the length direction of the support rod 32, a moving magnet 323 is fixedly mounted on the outer wall surface of the support rod 32 on the other side close to the push plate 322, and a static magnet 37 is also fixedly mounted on the inner wall surface of the support box 31 for magnetically cooperating with the moving magnet 323;

[0053] Specifically, as a further embodiment of the present invention, the limiting mechanism 36 includes:

[0054] The limiting shaft 361 is rotatably engaged with the support box 31;

[0055] The pressing plate 362 is fixedly mounted on one side of the limiting shaft 361 and is used to cooperate with the pushing plate 322 to drive the limiting shaft 361 to rotate;

[0056] The transmission plate 363 is fixedly mounted on the other side of the limiting shaft 361 and is used to cooperate with the fixing groove 321 to limit the support rod 32;

[0057] The support column 364 is fixedly mounted on the support box 31 and is used to provide position-limiting support for the transmission plate 363;

[0058] In the embodiment of the present invention, in actual application, the dynamic support body 1 and the static support body 2 enclose and fix the tree, wherein the first support assembly 3 and the second support assembly 6 are in contact with the tree, pressing and fixing the tree, and the clamping plate 33 and the support rod 32 are pushed by the positioning spring 35, so that the clamping plate 33 supports the tree. When the tree grows, the trunk gradually becomes thicker and exerts a force on the clamping plate 33, so that the clamping plate 33 squeezes the support rod 32. Through the limitation of the positioning spring 35 and the positioning rod 34, the support rod 32 slides into the support box 31. When encountering a storm, the shaking of the tree will increase the clamping plate 33 and the support rod 3 2. At this time, the push plate 322 moves at a faster speed. The movement of the push plate 322 will exert a force on the pressing plate 362, causing the pressing plate 362 to rotate downward, and the transmission plate 363 rotates synchronously with the pressing plate 362 through the limiting shaft 361. In addition, the transmission plate 363 limits the support rod 32 through the fixing groove 321 when moving, so as to prevent the tree from shaking too much. When the moving magnet 323 moves and gradually approaches the static magnet 37, the magnetic repulsive force between the two will also gradually increase, and then the support rod 32 will be limited, so as to ensure that the support rod 32 has a better effect of clamping and fixing the tree through the clamping plate 33.

[0059] The trees are supported by the cooperation of the first support assembly 3 and the second support assembly 6. As the trees grow, the clamping plate 33 adjusts its position through the support rod 32 and the positioning spring 35, and always fits the tree to avoid indentations on the branches of the tree as the tree grows. In windy weather, the limiting mechanism 36 limits the support rod 32 in one case, and the dynamic magnet 323 and the static magnet 37 cooperate with each other to limit the support rod 32 in another case. These two methods limit the travel of the support rod 32 to avoid large shaking of the tree and provide better stability for the tree support and fixation.

[0060] like Figures 1 to 6 As shown, as a further embodiment of the present invention, a sealing assembly 4 is further included, which is provided on the static support body 2 and is used to limit and fix the dynamic support body 1 and the static support body 2. The sealing assembly 4 includes:

[0061] The limiting gear 41 is fixedly mounted on the first mounting shaft. The limiting gear 41 is rotatably engaged with the static support body 2 via the first mounting shaft. The limiting gear 41 is also meshed with the rack plate 11.

[0062] The rotating shaft 42 is rotatably engaged with the static support body 2 near the side of the limiting gear 41;

[0063] The limiting baffle 43 is fixedly mounted on the end surface of the rotating shaft 42 and is used to limit the rotation of the limiting gear 41;

[0064] A reset plate 44 is fixedly mounted on the free end of the rotating shaft 42 and is used to reset the limit stopper 43;

[0065] The limiting rod 45 is rotatably engaged with the static support body 2 and is used to limit the rotation of the limiting baffle 43;

[0066] Specifically, as a further embodiment of the present invention, the number of the sealing assemblies 4 is two groups symmetrically distributed along the central axis of the static support body 2, and the number of the rack plates 11 is two groups symmetrically distributed along the central axis of the dynamic support body 1;

[0067] In an embodiment of the present invention, in actual application, when the dynamic support body 1 and the static support body 2 are enclosed, the rack plate 11 moves to engage with the limit gear 41. The rotation of the limit gear 41 will push the limit baffle 43 to rotate. The reset plate 44 is affected by gravity to reset the limit baffle 43 after rotation. Due to the obstruction of the limit rod 45, the limit baffle 43 can only rotate in a single direction when reset, causing the limit gear 41 to only rotate in a single direction, thereby limiting the rack plate 11 and increasing the stability after the dynamic support body 1 and the static support body 2 are connected.

[0068] By setting the rack plate 11 and the sealing assembly 4, the dynamic support body 1 and the static support body 2 are fixed, making the connection more firm, preventing the dynamic support body 1 and the static support body 2 from loosening and falling when the tree support is fixed, and the installation is convenient and the efficiency of tree support is high.

[0069] like Figures 1 to 6 As shown, as a further embodiment of the present invention, the structure of the second support assembly 6 is the same as that of the first support assembly 3. The second support assembly 6 cooperates with the first support assembly 3 to support and fix the tree;

[0070] In the embodiment of the present invention, in actual application, when a tree is supported and fixed, it is subjected to squeezing forces in two directions, thereby increasing the stability of the tree.

[0071] like Figures 1 to 6 As shown, as a further embodiment of the present invention, it also includes an adjustment component 5, one of the three adjustment components 5 is arranged on the dynamic support body 1, and the other two of the three adjustment components 5 are arranged on the static support body 2, for supporting and positioning the dynamic support body 1 and the static support body 2, and the adjustment component 5 includes:

[0072] The main fixed leg 51 is rotatably engaged with the dynamic support body 1;

[0073] The main adjusting leg 52 is slidably fitted on the main fixed leg 51 and is used to adjust the height of the main fixed leg 51;

[0074] The fixing frame 53 is rotatably engaged with the main adjustment leg 52. A fixing cone 54 is fixedly mounted on the end surface of the fixing frame 53 for positioning the fixing frame 53.

[0075] The auxiliary fixed leg 55 is rotatably engaged with the main fixed leg 51;

[0076] The auxiliary adjusting leg 56 is slidably fitted on the auxiliary fixing leg 55 and is used to adjust the height of the auxiliary fixing leg 55;

[0077] Specifically, as a further embodiment of the present invention, a first fixing pin 511 is rotatably engaged with the outer wall surface of the main fixed leg 51. The first fixing pin 511 is also rotatably engaged with the main adjusting leg 52 through the main fixed leg 51. The main adjusting leg 52 has a plurality of adjustment holes equidistantly distributed in the height direction for adjusting the length of the main adjusting leg 52. A second fixing pin 551 is rotatably engaged with the outer wall surface of the auxiliary fixed leg 55. The second fixing pin 551 is rotatably engaged with the auxiliary fixed leg 55 through the auxiliary adjusting leg 56. A plurality of adjustment holes equidistantly distributed in the height direction for adjusting the height of the auxiliary adjusting leg 56 are fixedly mounted on the end surface of the auxiliary adjusting leg 56.

[0078] In the embodiment of the present invention, in actual application, the length of the main adjusting leg 52 is adjusted by the first fixing pin 511, so that the main fixing leg 51 supports the dynamic support body 1 and the static support body 2 for trees of different heights, and then the length of the auxiliary adjusting leg 56 is adjusted by the second fixing pin 551, so that the positioning cone is inserted into the soil to support the main fixing leg 51, and then the main adjusting leg 52 is supported and fixed by the fixing cone 54, thereby completing the support of the tree.

[0079] By setting the adjustment component 5, different support heights can be adjusted for different trees, thereby improving the stability of the tree support. At the same time, the auxiliary fixed leg 55 and the auxiliary adjustment leg 56 can also support the main fixed leg 51 and the main adjustment leg 52, further increasing the stability of the tree support.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tree support device for forestry protection, characterized in that: include: A dynamic support body (1), on which a rack plate (11) and a static support body (2) are mounted, for enclosing and supporting trees, and a second support assembly (6) is also mounted on the dynamic support body (1); The first support assembly (3) is arranged on the static support body (2) and is used to press and fix the tree. The first support assembly (3) comprises: A support box (31) is fixedly mounted on the static support body (2), wherein a positioning rod (34) and a positioning spring (35) are fixedly mounted in the support box (31); The support rod (32) is slidably matched with the support box (31), the static support body (2) and the positioning rod (34); the axial end of the support rod (32) is fixedly mounted with a clamping plate (33); the free end of the support rod (32) is also fixedly connected to a positioning spring (35) for limiting the position of the support rod (32); The limiting mechanism (36) is arranged in the supporting box (31) and is used to limit the moving stroke of the supporting rod (32).

2. A tree support device for forestry protection according to claim 1, characterized in that: A push plate (322) is fixedly mounted on the outer wall surface of the support rod (32); a fixing groove (321) is provided on the outer wall surface of the support rod (32) on one side close to the push plate (322); a plurality of the fixing grooves (321) are equidistantly distributed in the length direction of the support rod (32); a moving magnet (323) is fixedly mounted on the outer wall surface of the support rod (32) on the other side close to the push plate (322); and a static magnet (37) is also fixedly mounted on the inner wall surface of the support box (31) for magnetically cooperating with the moving magnet (323).

3. The tree support equipment for forestry protection according to claim 2, characterized in that: The limiting mechanism (36) comprises: A limiting shaft (361) is rotatably engaged with the support box (31); A pressing plate (362) is fixedly mounted on one side of the limiting shaft (361) and is used to cooperate with the pushing plate (322) to drive the limiting shaft (361) to rotate; A transmission plate (363) is fixedly mounted on the other side of the limiting shaft (361) and is used to cooperate with the fixing groove (321) to limit the support rod (32); The support column (364) is fixedly mounted on the support box (31) and is used for providing position-limiting support to the transmission plate (363).

4. The tree support equipment for forestry protection according to claim 1, characterized in that: It also includes a sealing assembly (4) which is arranged on the static support body (1) and is used to positionally fix the dynamic support body (1) and the static support body (2). The sealing assembly (4) includes: A limit gear (41) is fixedly mounted on the first mounting shaft, the limit gear (41) is rotationally engaged with the static support body (2) via the first mounting shaft, and the limit gear (41) is also meshedly connected with the rack plate (11); A rotating shaft (42) is rotatably engaged with the static support body (2) on a side close to the limiting gear (41); A limit baffle (43) is fixedly mounted on the end surface of the rotating shaft (42) and is used to limit the rotation of the limit gear (41); A reset plate (44) is fixedly mounted on the free end of the rotating shaft (42) and is used to reset the limit baffle (43); The limiting rod (45) is rotatably engaged with the static support body (2) and is used to limit the rotation of the limiting baffle (43).

5. The tree support equipment for forestry protection according to claim 4, characterized in that: The number of the sealing assemblies (4) is two groups and they are symmetrically distributed along the central axis of the static support body (2); the number of the rack plates (11) is two groups and they are symmetrically distributed along the central axis of the dynamic support body (1).

6. The tree support equipment for forestry protection according to claim 1, characterized in that: The structure of the second support assembly (6) is the same as that of the first support assembly (3); the second support assembly (6) cooperates with the first support assembly (3) to support and fix trees.

7. The tree support equipment for forestry protection according to claim 1, characterized in that: It also includes an adjustment component (5), one of the three adjustment components (5) is arranged on the dynamic support body (1), and the other two of the three adjustment components (5) are arranged on the static support body (2), for supporting and positioning the dynamic support body (1) and the static support body (2), and the adjustment component (5) includes: A main fixed leg (51) is rotatably engaged with the dynamic support body (1); A main adjusting leg (52) is slidably fitted on the main fixing leg (51) and is used to adjust the height of the main fixing leg (51); A fixing frame (53) is rotatably engaged with the main adjustment leg (52), and a fixing cone (54) is fixedly mounted on the end surface of the fixing frame (53) for positioning the fixing frame (53); A secondary fixed leg (55) is rotatably engaged with the main fixed leg (51); The auxiliary adjusting leg (56) is slidably fitted on the auxiliary fixing leg (55) and is used for adjusting the height of the auxiliary fixing leg (55).

8. The tree support device for forestry protection according to claim 7, characterized in that: The outer wall surface of the main fixed leg (51) is rotatably engaged with a first fixing pin (511), and the first fixing pin (511) is also rotatably engaged with the main adjustment leg (52) through the main fixed leg (51). The main adjustment leg (52) is equidistantly provided with a plurality of adjustment holes in the height direction for adjusting the length of the main adjustment leg (52). The outer wall surface of the auxiliary fixed leg (55) is rotatably engaged with a second fixing pin (551), and the second fixing pin (551) is rotatably engaged with the auxiliary fixed leg (55) through the auxiliary adjustment leg (56). The auxiliary adjustment leg (56) is equidistantly provided with a plurality of adjustment holes in the height direction for adjusting the height of the auxiliary adjustment leg (56). A positioning cone is fixedly mounted on the end surface of the auxiliary adjustment leg (56).

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